Bibliography

American Ornithologists' Union. 1957. Check-list of North American birds. 5th ed. Am. Ornithol. Union, Washington, D.C.

American Ornithologists' Union. 1976. Thirty-third supplement to the American Ornithologists' Union check-list of North American birds. Auk 93:875-879.

American Ornithologists' Union. 1983. Check-list of North American birds. 6th ed. Am. Ornithol. Union, Washington, D.C.

American Ornithologists' Union. 1998. Check-list of North American birds: the species of birds of North America from the Arctic through Panama, including the West Indies and Hawaiian Islands. Seventh ed. Am. Ornithol. Union, Washington, D.C.

Arnaiz-Villena, A., M. Alvarez-Tejado, V. Ruiz-del-Valle, C. Garcia-de-la-Torre, P. Varela, M. J. Recio, S. Ferre, and J. Martinez-Laso. 1998. Phylogeny and rapid Northern and Southern Hemisphere speciation of goldfinches during the Miocene and Pliocene Epochs. Cellular and Molecular Life Sciences 54(9):1031-1041.

Bakken, G. S. and K. F. Lee. 1992. Effects of wind and illumination on behavior and metabolic rate of American Goldfinches (Carduelis tristis). Auk 109:119-125.

Batts, H. L. 1948. Some observations on the nesting activities of the Eastern Goldfinch. Jack-Pine Warbler 26:51-58.

Benkman, C. W. and H. R. Pulliam. 1988. The comparative feeding rates of North American sparrows and finches. Ecology 89:1195-1199.

Berger, A. J. 1968. Clutch size, incubation period, and nestling period of the American Goldfinch. Auk 85:494-498.

Best, L. B., H. Campa, K. E. Kemp, R. J. Robel, M. R. Ryan, J. A. Savidge, H. P. Weeks, and S. R. Winterstein. 1998. Avian abundance in CRP and crop fields during winter in the midwest. American Midland Naturalist 139(2):311-324.

Boutin, C., K. E. Freemark, and D. A. Kirk. 1999. Farmland birds in southern Ontario: field use, activity patterns and vulnerability to pesticide use. Agriculture Ecosystems & Environment 72(3):239-254.

Browning, N. G. and R. J. Robel. 1981. Metabolizable energy in four seeds fed to Cardinals. Trans. Kans. Acad. Sci. 84:115-118.

Brunet, R. and A. Cyr. 1992. The impact of dimethoate on rhythms of 3 granivorous bird species. Agriculture Ecosystems & Environment 41(3-4):327-336.

Buttemer, W. A. 1985. Energy relations of winter roost-site utilization by American goldfinches (Carduelis tristis). Oecologia 68:126-132.

Carey, C., W. R. Dawson, L. C. Maxwell, and J. A. Faulkner. 1978. Seasonal acclimatization to temperature in cardueline finches. J. Comp. Physiol. 125:101.

Coutlee, E. L. 1964. Maintenance behavior of the American Goldfinch. Wilson Bull. 75:342-357.

Coutlee, E. L. 1967. Agonistic behavior in the American Goldfinch. Wilson Bull. 79:89-109.

Coutlee, E. L. 1971. Vocalizations in the genus Spinus. Anim. Behav. 19:556-565.

Daoust, P. Y., D. G. Busby, L. Ferns, J. Goltz, S. McBurney, C. Poppe, and H. Whitney. 2000. Salmonellosis in songbirds in the Canadian Atlantic provinces during winter-summer 1997-98. Canadian Veterinary Journal-Revue Veterinaire Canadienne 41(1):54-59.

Davis, M. A., D. W. Peterson, P. B. Reich, M. Crozier, T. Query, E. Mitchell, J. Huntington, and P. Bazakas. 2000. Restoring savanna using fire: Impact on the breeding bird community. Restoration Ecology 8(1):30-40.

Dawson, W. R. and C. Carey. 1976. Seasonal acclimatization to temperature in cardueline finches. J. Comp. Physiol. 112:317-333.

Dawson, W. R., C. Carey, and T. J. Vanthof. 1992. Metabolic aspects of shivering thermogenesis in passerines during winter. Ornis Scandinavica 23(3):381-387.

Dawson, W. R. and R. L. Marsh. 1986. Winter fattening in the American Goldfinch and the possible role of temperature in its regulation. Physiol. Zool. 59:357-368.

Dawson, W. R., R. L. Marsh, and M. E. Yacoe. 1983. Metabolic adjustments of small passerine birds for migration and cold. Am. J. Physiol. 245:755-767.

Desportes, J. P., N. B. Metcalfe, J. W. Popp, R. M. Meyer, A. Gallo, and F. Cezilly. 1990. The predictability and patterns of vigilant behavior. Behavioural Processes 22(1-2):41-46.

Dhondt, A. A., P. H. Wrege, J. Cerretani, and K. V. Sydenstricker. 2007. Avian species richness and reproduction in shortrotation coppice habitats in central and western New York. Bird Study 54:12-22.

Dirck, M. 1986. Loggerhead Shrike takes American Goldfinch. Bull. Okla. Ornithol. Soc. 19:29-30.

Dorsey, G. A. 1963. Notes on the food of the Goldfinch. Oriole 28:72-73.

Droege, S. and J. R. Sauer. 1989. North American breeding bird survey annual summary 1988. U.S. Fish Wildl. Serv. Biol. Rep. No. 89(13)

Drum, M. 1939. Territorial studies on the Eastern Goldfinch. Wilson Bull. 51:69-77.

Dunn, E. H. and J. A. T. Hussell. 1991. Goldfinch preferences for bird feeder location. J. Field Ornithol. 62:256-259.

Dwight, Jr., J. 1902. Individual, seasonal, and geographical variations of the American Goldfinch (Astragalinus tristis). Auk 19:149-164.

Erickson, R. A. and S. N. G. Howell, (Eds.). 2001. Birds of the Baja California Peninsula: Status, Distribution, and Taxonomy. Monogr. Field Ornithol. 3.

Erickson, W. P., G. D. Johnson, M. D. Strickland, K. Kronner, P. S. Becker, and S. Orloff. 1999. Baseline avian use and behavior at the CARES wind plant site, Klickitat County, Washington. Subcontractor report. National Renewable Energy Laboratory, Golden, C.O.

Erskine, A. J. 1978. The first ten years of the co-operative breeding bird survey in Canada. Can. Wildl. Serv. Rep. Ser. No. 42.

Erskine, A. J., B. T. Collins, E. Hayakawa, and C. Downes. 1992. The cooperative breeding bird survey in Canada, 1989-91. Can. Wildl. Serv., Prog. Notes. No. 199.

Farmer, K. L., G. E. Hill, and S. R. Roberts. 2005. Susceptibility of wild songbirds to the house finch strain of Mycoplasma gallisepticum. Journal of Wildlife Diseases 41(2):317-325.

Federation of Alberta Naturalists. 2007. Atlas of Breeding Birds of Alberta: a second look. Federation of Alberta Naturalists, Edmonton, ALB.

Fischer, J. R., D. E. Stallknecht, M. P. Luttrell, A. A. Dhondt, and K. A. Converse. 1997. Mycoplasmal conjunctivitis in wild songbirds: The spread of a new contagious disease in a mobile host population. Emerging Infectious Diseases 3(1):69-72.

Friedmann, H. and L. F. Kiff. 1985. The parasitic cowbirds and their hosts. Proc. West. Found. Vertebr. Zool. 2:227-302.

Gissing, G. J., T. J. Crease, and A. L. A. Middleton. 1998. Extrapair paternity associated with renesting in the American Goldfinch. Auk 115(1):230-234.

Gluck, E. 1982a. Locomotory activity of day-migrating finches. Pages 90-95 in Avian navigation. (Papi, F. L. and H. G. Wallraff, Eds.) Springer-Verlag, Berlin and Heidelberg, Gernmany.

Gluck, E. 1982b. Jahresperiodik und Zug sudwestdeutscher Stieglitze (Carduelis carduelis) - Freilandbeobachtungen, Ringfundauswertungen und Zugaktivitatsuntersuchungen. Vogelwarte 31:395-422.

Godfrey, W. E. 1986. The birds of Canada. Rev. ed. Nat. Mus. Canada, Ottawa, ON.

Gutzwiller, K. J. and H. A. Marcum. 1993. Avian responses to observer clothing color - caveats from winter point counts. Wilson Bulletin 105(4):628-636.

Harrison, C. 1978. A field guide to the nests, eggs and nestlings of North American birds. Collins Sons and Co., Ltd. Glasgow, Scotland.

Hartup, B. K., A. A. Dhondt, K. V. Sydenstricker, W. M. Hochachka, and G. V. Kollias. 2001. Host range and dynamics-of mycoplasmal conjunctivitis among birds in North America. Journal of Wildlife Diseases 37(1):72-81.

Hartup, B. K., G. V. Kollias, and D. H. Ley. 2000. Mycoplasmal conjunctivitis in songbirds from New York. Journal of Wildlife Diseases 36(2):257-264.

Hill, G. E. 1993. House Finch (Carpodacus mexicanus). in The birds of North America, No. 46. (Poole, A. and F. Gill, Eds.) Acad. Nat. Sci. Phila. and Am. Ornithol. Union, Philadelphia, PA.

Hill, G. E. and K. J. McGraw. 2004. Correlated changes in male plumage coloration and female mate choice in cardueline finches. Animal Behaviour 67:27-35.

Holcomb, L. C. 1967. Goldfinch accept young after long and short incubation. Wilson Bull. 79:348.

Holcomb, L. C. 1968. Growth of nestling Goldfinches compared to adult size and differential development rate of structures in relation to their function. Nebr. Bird Rev. 36:22-32.

Holcomb, L. C. 1969a. Breeding biology of the American Goldfinch in Ohio. Bird-Banding 40:26-44.

Holcomb, L. C. 1969b. Growth and calculation of age in the American Goldfinch. Nebr. Bird Rev. 37:3-15.

Holcomb, L. C. 1969c. Age-specific mortality of American Goldfinch nestlings. Auk 86:760-761.

Horn, D. J. 1995. Perching orientation affects number of feeding attempts and seed consumption by the American Goldfinch (Carduelis tristis). Ohio Journal of Science 95(4):292-293.

Howell, S. N. G. and S. Webb. 1995. A guide to the birds of Mexico and northern Central America. Oxford Univ. Press, Oxford, UK.

Jacobsen, A. M. 1990. Sex ratios of nestling American Goldfinches (Carduelis tristis) at Guelph, Ontario. Master's Thesis. Univ. Guelph, Guelph, ON.

Johnson, K., R. Dalton, and N. Burley. 1993. Preferences of female American Goldfinches (Carduelis tristis) for natural and artificial male traits. Behavioral Ecology 4(2):138-143.

Kaufman, K. 1993. Notes on goldfinch identification. American Birds 47:159-162.

Kendeigh, S. C. 1952. Parental care and its evolution in birds. Ill. Biol. Monogr. No. 22.

Kilham, L. 1980. Goldfinches feeding on filamentous algae. Oriole 45:48.

Kiviat, E. 1996. American Goldfinch nests in purple loosestrife. Wilson Bulletin 108(1):182-186.

Klimkiewicz, M. K. and A. G. Futcher. 1989. Longevity records of North American birds Supplement 1. J. Field Ornithol. 60:469-494.

Knight, R. L. and S. A. Temple. 1986. Nest defence in the American Goldfinch. Anim. Behav. 34:887-897.

Lepage, M. and B. Limoges. 1996. American Goldfinch. Pages 1082-1085 in The Breeding Birds of Quebec. (Gauthier, J. and Y. Aubrey, Eds.) Canadian Wildlife Serv., Environment Canada, Montreal.

Lewis, H. 1952. Thistle-nesting goldfinches. Flicker 24:105-109.

Ley, D. H., J. E. Berkhoff, and S. Levisohn. 1997. Molecular epidemiologic investigations of Mycoplasma gallisepticum conjunctivitis in songbirds by random amplified polymorphic DNA analyses. Emerging Infectious Diseases 3(3):375-380.

Liknes, E. T., S. M. Scott, and D. L. Swanson. 2002. Seasonal acclimatization in the American Goldfinch revisited: To what extent do metabolic rates vary seasonally? Condor 104(3):548-557.

Linsdale, J. M. 1957. Goldfinches on the Hastings Natural History Reservation. Am. Midl. Nat. 57:1-119.

Lustick, S., B. Battersby, and L. Mayer. 1982. Energy exchange in the winter acclimatized American Goldfinch Carduelis (Spinus) tristis. Comp. Biochem. Physiol. 72a:715-719.

Lynch, C. B. 1970. The reproductive strategy of the American Goldfinch, Spinus tristis tristis, in Iowa. Proc. Iowa Acad. Sci. 77:164-168.

MacDougall, A. K. and R. Montgomerie. 2003. Assortative mating by carotenoid-based plumage colour: a quality indicator in American Goldfinches, Carduelis tristis. Naturwissenschaften 90(10):464-467.

Mariani, C. L., C. G. Earley, and C. McKinnon. 1993. Early nesting by the American Goldfinch, Carduelis tristis, and subsequent parasitism by the Brown-headed Cowbird, Molothrus ater, in Ontario. Can. Field-Nat. 107(3):349-350.

Marsh, R. H., S. A. MacDougall-Shackleton, and T. P. Hahn. 2002. Photorefractoriness and seasonal changes in the brain in response to changes in day length in American goldfinches (Carduelis tristis). Canadian Journal of Zoology-Revue Canadienne De Zoologie 80(12):2100-2107.

Marshall, D. B., M. G. Hunter, and A. L. Contreras, (Eds.). 2003. Birds of Oregon: a general reference. Oregon State Univ. Press, Corvallis.

Marten, J. A. and N. K. Johnson. 1986. Genetic relationships of North American cardueline finches. Condor 88:409-420.

McCoy, T. D., M. R. Ryan, L. W. Burger, and E. W. Kurzejeski. 2001. Grassland bird conservation: CP1 vs. CP2 plantings in Conservation Reserve Program fields in Missouri. American Midland Naturalist 145(1):1-17.

McCoy, T. D., M. R. Ryan, E. W. Kurzejeski, and L. W. Burger. 1999. Conservation Reserve Program: Source or sink habitat for grassland birds in Missouri? Journal of Wildlife Management 63(2):530-538.

McGraw, K. J. 2004a. Colorful songbirds metabolize carotenoids at the integument. Journal of Avian Biology 35(6):471-476.

McGraw, K. J. 2004b. Winter plumage coloration in male American Goldfinches: Do reduced ornaments serve signaling functions in the non-breeding season? Ethology 110(9):707-715.

McGraw, K. J. and A. J. Gregory. 2004. Carotenoid pigments in male American Goldfinches: what is the optimal biochemical strategy for becoming colourful? Biological Journal of the Linnean Society 83(2):273-280.

McGraw, K. J. and G. E. Hill. 2000. Differential effects of endoparasitism on the expression of carotenoid- and melanin-based ornamental coloration. Proceedings of the Royal Society of London Series B-Biological Sciences 267(1452):1525-1531.

McGraw, K. J. and G. E. Hill. 2001. Carotenoid access and intraspecific variation in plumage pigmentation in male American Goldfinches (Carduelis tristis) and Northern Cardinals (Cardinals cardinalis). Functional Ecology 15(6):732-739.

McGraw, K. J., G. E. Hill, K. J. Navara, and R. S. Parker. 2004b. Differential accumulation and pigmenting ability of dietary carotenoids in colorful finches. Physiological and Biochemical Zoology 77(3):484-491.

McGraw, K. J., G. E. Hill, and R. S. Parker. 2005. The physiological costs of being colourful: nutritional control of carotenoid utilization in the American Goldfinch, Carduelis tristis. Animal Behaviour 69:653-660.

McGraw, K. J., G. E. Hill, R. Stradi, and R. S. Parker. 2001. The influence of carotenoid acquisition and utilization on the maintenance of species-typical plumage pigmentation in male American Goldfinches (Carduelis tristis) and Northern Cardinals (Cardinalis cardinalis) Physiological and Biochemical Zoology 74(6):843-852.

McGraw, K. J., G. E. Hill, R. Stradi, and R. S. Parker. 2002. The effect of dietary carotenoid access on sexual dichromatism and plumage pigment composition in the American Goldfinch. Comparative Biochemistry and Physiology B-Biochemistry & Molecular Biology 131(2):261-269.

McGraw, K. J., K. Wakamatsu, A. B. Clark, and K. Yasukawa. 2004a. Red-winged Blackbirds Agelaius phoeniceus use carotenoid and melanin pigments to color their epaulets. Journal of Avian Biology 35(6):543-550.

Mead, C. J. 1985. Age. Pages 5-7 in A dictionary of birds. (Campbell, B. and E. Lack, Eds.) Buteo Books, Vermillion, SD.

Middleton, A. L. A. 1965. The ecology and reproductive biology of the European Goldfinch Carduelis carduelis near Melbourne, Victoria. Phd Thesis. Monas Univ. Melbourne, Australia.

Middleton, A. L. A. 1970a. Foods and feeding habits of the European Goldfinch near Melbourne. Emu 70:12-16.

Middleton, A. L. A. 1970b. The breeding biology of the Goldfinch in south-eastern Australia. Emu 70:159-167.

Middleton, A. L. A. 1974. Age determination in the American Goldfinch. Bird-Banding 45:293-296.

Middleton, A. L. A. 1977a. Increase in overwintering by the American Goldfinch, Carduelis tristis, in Ontario. Can. Field-Nat. 91:165-172.

Middleton, A. L. A. 1977b. The molt of the American Goldfinch. Condor 79:440-444.

Middleton, A. L. A. 1977c. The effect of cowbird parasitism on American Goldfinch nesting. Auk 94:304-307.

Middleton, A. L. A. 1978. The annual cycle of the American Goldfinch. Condor 80:401-406.

Middleton, A. L. A. 1979. Influence of age and habitat on reproduction by the American Goldfinch. Ecology 60:418-432.

Middleton, A. L. A. 1982. Response by American Goldfinches, Carduelis tristis, to a severe winter storm. Can. Field-Nat. 96:202-204.

Middleton, A. L. A. 1986. Seasonal changes in plumage structure and body composition of the American Goldfinch, Carduelis tristis. Can. Field-Nat. 100:545-549.

Middleton, A. L. A. 1988. Polyandry in the mating system of the American Goldfinch, Carduelis tristis. Can. J. Zool. 66:296-299.

Middleton, A. L. A. 1991. Failure of Brown-headed Cowbird parasitism in nests of the American Goldfinch. J. Field Ornithol. 62:200-203.

Middleton, A. L. A. and R. J. Julian. 1983. Lymphoproliferative disease in the American Goldfinch, Carduelis tristis. J. Wildl. Dis. 19:280-285.

Middleton, A. L. A. and P. Webb. 1984. Longevity of the American Goldfinch. J. Field Ornithol. 55:383-386.

Miller, L. 1978. The spatial and temporal dispersion of nests as an adaptation to food exploitation and nest predation in the American Goldfinch. Phd Thesis. Univ. Illinois, Urbana-Champaign.

Mousley, H. 1930. The home life of the American Goldfinch. Can. Field-Nat. 44:177-179, 204-297.

Mousley, H. 1932. A third study of the home life of the Eastern Goldfinch (Spinus tristis tristis). Can. Field-Nat. 46:200-203.

Mousley, H. 1935. Is the Eastern Goldfinch (Spinus tristis tristis) double-brooded? A fourth study of its home life. Can. Field-Nat. 49:145-147.

Mundinger, P. C. 1970. Vocal imitation and individual recognition of finch calls. Science 168:480-482.

Mundinger, P. C. 1972. Annual testicular cycle and bill color change in the eastern American Goldfinch. Auk 89:403-419.

Muzny, P. L. 1982. Goldfinches and waxwing drinking maple sap. Bull. Okla. Ornithol. Soc. 15:8.

Navara, K. J. and G. E. Hill. 2003. Dietary carotenoid pigments and immune function in a songbird with extensive carotenoid-based plumage coloration. Behavioral Ecology 14(6):909-916.

Newton, I. 1967. The adaptive radiation and feeding ecology of some British finches. Ibis 109:33-98.

Newton, I. 1972. Finches. Collins Sons and Co. Ltd. London, UK.

Nickell, W. 1951. Studies of habitats, territory, and nests of the Eastern Goldfinch. Auk 68:447-470.

Olson, V. A. 1996. Coccidia and sexual selection in the American Goldfinch (Carduelis tristis): a test of the Hammilton-Zuk hypothesis. M.Sc. thesis. University of Guelph, Ontario, Canada.

Olson, V. A., G. J. Gissing, J. R. Barta, and A. L. A. Middleton. 1998. A new Isospora sp. from Carduelis tristis (Aves : Fringillidae) from Ontario, Canada. Journal of Parasitology 84(1):153-156.

Patten, M. A., G. McCaskie, and P. Unitt. 2003. Birds of the Salton Sea: status, biogeography, and ecology. Univ. Calif. Press, Berkeley.

Peak, R. G. 2003. An experimental test of the concealment hypothesis using American Goldfinch nests. Wilson Bulletin 115(4):403-408.

Peck, G. K. and R. D. James. 1987. Breeding birds of Ontario: nidiology and distribution, vol. 2: passerines. Royal Ont. Mus. Life Sci. Misc. Publ. Toronto.

Pengelly, M. 1982. The mating system of the American Goldfinch, Carduelis tristis (Passeriformes: Fringillidae). Master's Thesis. Univ. Guelph, Guelph, ON.

Phillips, A. R., J. Marshall, and G. Monson. 1964. The birds of Arizona. Univ. Ariz. Press, Tucson.

Phillips, R. S. 1968. Goldfinch attains age in excess of 11 years. Auk 85:499.

Popp, J. W. 1986. Changes in scanning and feeding rates with group size among American Goldfinches. Bird Behaviour 6(2):97-98.

Popp, J. W. 1987a. Resource value and dominance among American Goldfinches. Bird Behav. 7:73-77.

Popp, J. W. 1987b. Allofeeding in American Goldfinches (Carduelis tristis). Wilson Bulletin 99(2):293-294.

Popp, J. W. 1987c. Risk and effectiveness in the use of agonistic displays by American Goldfinches. Behaviour 103:141-156.

Popp, J. W. 1987d. Choice of opponents during competition for food among American Goldfinches. Ethology 75(1):31-36.

Popp, J. W. 1988a. Effects of food handling time on scanning rates among American Goldfinches. Auk 105:384-385.

Popp, J. W. 1988b. Effects of experience on agonistic behavior among American Goldfinches. Behavioural Processes 16(1-2):11-19.

Prescott, D. R. and A. L. A. Middleton. 1990. Age and sex differences in winter distribution of American Goldfinches in eastern North America. Ornis. Scand. 21:99-104.

Prescott, D. R. C., A. L. A. Middleton, and D. R. Lamble. 1989. Variations in the age and sex ratios of American Goldfinches trapped at baited stations. J. Field. Ornithol. 60:340-349.

Prescott, K. W. 1983. Weight, fat, and wing measurement variations of adult American Goldfinches in New Jersey. N. Am. Bird Bander 8:149-152.

Pyle, P., S. N. G. Howell, R. P. Yunick, and D. F. DeSante. 1987. Identification guide to North American passerines. Slate Creek Press, Bolinas, CA.

Ridgway, R. 1901. The Birds of North and Middle America. Part I. Bull. U. S. Nat. Mus. No. 50(Part I):1-716.

Robbins, C. S., D. Bystrak, and P. H. Geissler. 1986. The breeding bird survey: its first fifteen years, 1965-1979. U.S. Fish Wildl. Serv. Res. Publ. No. 157, Washington, D.C.

Robel, R. J., A. R. Bisset, T. M. Clement, Jr., A. D. Dayton, and K. L. Morgan. 1979. Metabolizable energy of important foods of bobwhites in Kansas. J. Wildl. Manage. 43:982-987.

Root, T. 1988. Atlas of wintering North American birds: an analysis of Christmas bird count data. Univ. Chicago Press, Chicago, IL.

Rosen, R. F. and K. A. Tarvin. 2006. Sexual signals of the male American Goldfinch. Ethology 112(10):1008-1019.

Sauer, J. R., J. E. Hines, and J. Fallon. 2008. The North American Breeding Bird Survey, Results and Analysis 1966-2007. Version 5.15.2008. USGS Patuxent Wildlife Research Center, Laurel, MD. [Online.] http://www.mbr-pwrc.usgs.gov/bbs/

Sauer, J. R., S. Schwartz, and B. Hoover. 1996. The Christmas Bird Count Home Page. Version 95.1. Patuxent Wildlife Research Center, Laurel, MD. [Online.] http://www.mbr-pwrc.usgs.gov/bbs/cbc.html

Shawkey, M. D., G. E. Hill, K. J. McGraw, W. R. Hood, and K. Huggins. 2006. An experimental test of the contributions and condition dependence of microstructure and carotenoids in yellow plumage coloration. Proceedings of the Royal Society B-Biological Sciences 273(1604):2985-2991.

Sibley, C. 1939. Fossil fringillids from Rancho La Brea. Condor 41:126-127.

Skagen, S. K. 1987. Hatching asynchrony in American Goldfinches: an experimental study. Ecology 68:1747-1759.

Smithe, F. B. 1975. Naturalist's color guide: 3 parts. Am. Mus. Nat. Hist. New York.

Speirs, J. M. 1985. Birds of Ontario. Vol. 2. Nat. Heritage/ Nat. Hist. Inc. Toronto, ON.

Stewart, C. E. and C. S. Robbins. 1958. Birds of Maryland and District of Columbia. N. Am. Fauna No. 62, Washington, D.C.

Stokes, A. W. 1950. Breeding behavior of the goldfinch. Wilson Bull. 62:107-127.

Sughrue, K. M., J. B. French, and M. C. Brittingham. 2003. Morphological and physiological effects of the endocrine-disrupting contaminant linuron on the American Goldfinch (Carduelis tristis). Integrative and Comparative Biology 43(6):1007-1007.

Sullivan, B. D. 1991. Additional vertebrate prey items of the Red Squirrel, Tamiasciurus hudsonicus. Can. Field-Nat. 105:398-399.

Sutton, G. M. 1959. The nesting fringillids of the Edwin S. George Reserve, southeastern Michigan. Jack-Pine Warbler 37:37-50.

Tarvin, K. A. 2006. Polymorphic microsatellite loci from the American Goldfinch (Carduelis tristis) and their cross-amplification in a variety of passerine species. Molecular Ecology Notes 6(2):470-472.

Thiel, R. P. 1980. Weight and fat classes of wintering Wisconsin goldfinches. Inland Bird Banding 52:56-59.

Tyler, W. M. 1968. Spinus tristis tristis (Linnaeus) Eastern American Goldfinch. Pages 447-466 in Life histories of North American cardinals, grosbeaks, buntings, towhees, finches, sparrows, and allies. (Austin, Jr., O. L., Ed.) U.S. Natl. Mus. Bull. No. 237 (1).

Unitt, P. 2005. San Diego County Bird Atlas. Proc. San Diego Nat. Hist. Mus 39.

Van Rossem, A. J. 1943. Description of a race of goldfinch from the Pacific Northwest. Condor 45(4):158-159.

Van Twest, R. 1991. The winter birds of Guelph and Wellington County. Spec. Pub., Guelph Field Nat. Club. Guelph, ON.

Walkinshaw, L. H. 1938. Life history studies of the Eastern Goldfinch. Jack-Pine Warbler. 16:2-11, 14-15.

Walkinshaw, L. H. 1939. Life history studies of the Eastern Goldfinch, part 2. Jack-Pine Warbler 17:3-12.

Walkinshaw, L. H. 1943. Snakes destroying birds' eggs and young. Wilson Bull. 55:56.

Watt, D. J. 2001. Recapture rate and breeding frequencies of American Goldfinches wearing different colored leg bands. Journal of Field Ornithology 72(2):236-243.

Watt, D. J. and A. M. Dimberio. 1990. Structure of successful nests of the American Goldfinch (Carduelis tristis). J. Field Ornithol. 61:413-418.

Wiseman, A. J. 1975. Changes in body weight of American Goldfinches. Wilson Bull. 87:390-411.

Yunick, R. P. 1979. Variation in skull pneumatisation patterns of certain passerines. N. Am. Bird Bander 4:145-147.

Yunick, R. P. 1983. Age determination of female American Goldfinches. N. Am. Bird Bander 8:152.

Zamora, J., L. Ernesto, V. Ruiz-Del-Valle, J. Moscoso, J. I. Serrano-Vela, J. Rivero-De-Aguilar, and A. Arnaiz-Villena. 2006. Rhodopechys obsoleta (Desert Finch): a pale ancestor of greenfinches (Carduelis spp.) according to molecular phylogeny. Journal of Ornithology 147(3):448-456.

Zamora, J., J. Moscoso, V. Ruiz-del-Valle, E. Lowy, J. I. Serrano-Vela, J. Ira-Cachafeiro, and A. Arnaiz-Villena. 2006. Conjoint mitochondrial phylogenetic trees for canaries Serinus spp. and goldfinches Carduelis spp. show several specific polytomies. Ardeola 53(1):1-17.