Books:				
1	Cleere, Nigel	A Guide to the Nightjars, Nighthawks and their Relatives	Yale University Press, 1998	
2	Hill, Geoffrey E.	National Geographic Bird Coloration 	National Geographic	
3	Kaufman, Kenn	Lives of North American Birds	Houghton Mifflin Company, 1996	
4		The Audubon Illustrated handbook of American Birds	McGraw-Hill, 1968	
5	Sibley, David Allen	The Sibley Guide to Birds	Alfred A. Knopf, New York, 2001	
6	Kaufman, Kenn	Field Guide to Birds of North America	Hillstar Editions L.C., 2000	
7	Cornett, James W.	The Roadrunner	Nature Trails Press, 2001
8	Lefranc, Norbert	Shrikes, A guide to the Shrikes of the World	Yale University Press, 1997
9	Harrap, Simon and David Quinn 	Chickadees, Tits, Nuthatches & Treecreepers	Princeton University Press, 1995
10	Sibley, David Allen	The Sibley Guide to Bird Life & Behavior	Alfred A. Knopf, New York, 2001
11	Howell, Steve N.G.	Molt in North American Birds	Houghton Mifflin Harcourt, 2010
12	Hawaii Audubon Society	Hawaii's Birds	Hawaiian Audubon Society, 2005
13	Bellrose, Frank C. & Daniel J. Holm	Ecology and Management of the Wood Duck	Stackpole Books, Mechanicsburg, Pennsylvania 1994
14	McIntyre, Judith W.	The Common Loon, Spirit of Northern Lakes	University of Minnesota Press, 1989
15	David Beadle and J.D. Rising	Sparrows of the United States and Canada: A Photgraphic Guide	Rising, Academic Press, 2002
16	Fred J. Alsop III	Birds of Texas	DK Publishing, Inc., 2002
17	Edited by Janet Kear	Ducks, Geese and Swans, Volume 2	Oxford University Press, 2005
18	J. Bryan Nelson	Pelicans, Cormorants and their relatives	Oxford University Press, 2005

				
				
Web:				
1	http://identify.whatbird.com	Waite, Mitchell - WhatBird		
2	http://www.birds.cornell.edu	The Cornell Lab of Ornithology		
3	http://www.mbr-pwrc.usgs.gov	Patuxent Wildlife Research Center		
4	http://en.wikipedia.org	The Free Encyclopedia		
5	http://birds.audubon.org	Audubon		
6	http://animaldiversity.ummz.umich.edu/site/index.html	Animal Diversity Web, Univ. of Michigan Museum of Zoology
7	http://vulturesociety.homestead.com/TVFacts.html	Turkey Vulture Facts, Maps, and Statistics
8	http://birding.about.com	About.com
9	http://bna.birds.cornell.edu/bna	The Birds of North America Online from the Cornell Lab of Ornithology
10	http://birdweb.org/birdweb	Seattle Audubon Society
11	http://www.placeforwildbirds.org	The Place for Wild Birds, Inc. Recovery Center
12	http://www.hawkmountain.org	Hawk Mountain
13	http://www.birdsource.org/	BirdSource - Birding with a Purpose
14	http://www.state.hi.us/dlnr/dofaw/cwcs/files/NAAT%20final%20CWCS/Chapters/Terrestrial%20Fact%20Sheets/Forest%20Birds/iiwi%20NAAT%20final%20!.pdf	Hawaii's Comprehensive Wildlife Conservation Strategy. State of Hawai?i. 2005-10-1
15	http://nationalzoo.si.edu/Animals/Birds/Facts/FactSheets/fact-iiwi.cfm	Smithsonian National Zoological Park
16	http://www.fs.fed.us/psw/publications/4251/fancy2.pdf	Steven G. Fancy & C. John Ralph "The Birds of North America", No. 327, 1998
17	http://www.ehow.com	eHow
18	http://rosamondgiffordzoo.org/assets/uploads/animals/pdf/Yellow-billedCardinal.pdf	Rosamond Gifford Zoo at Burnet Park
19	http://www.kenyabirds.org.uk/	Kenya Birds
20	http://www.biodiversityexplorer.org/birds/fringillidae/crithagra_mozambicus.htm	Biodiversity Explorer - The web of life in Southern Africa
21	www.savingcranes.org	International Crane Foundation
22	http://www.state.hi.us/dlnr/dofaw/cwcs/files/NAAT%20final%20CWCS/Chapters/Terrestrial%20Fact%20Sheets/raptors/pueo%20NAAT%20final%20!.pdf	Pueo or Hawaiian Short-eared Owl, Hawaii
23	http://www.dnr.state.mn.us/birds/commonloon.html	Minnesota Department of Natural Resources
24	http://animals.nationalgeographic.com/animals/birds	National Geographic
25	http://www.bird-friends.com	Bird Friends of San Diego County
26	http://www.sandiegozoo.org/animalbytes/a-birds.html	San Diego Zoo
27	http://www.mynahbird.org/species/bali/bali.html	Myna Bird Organization
28	http://www.zoo.org	Woodland Park Zoo, Seattle, WA
29	http://www.honoluluzoo.org	Honolulu Zoo
30	http://www.dpiw.tas.gov.au/inter-nsf/WebPages/LJEM-6FSV2E?open	Tasmania Australian Department of Primary Industries, Parks, Water and Environment
31	http://www.atsb.gov.au/media/36504/03_masked-lapwings.pdf	Australian Transport Safety Bureau
32	http://www.waza.org/en/zoo/	World Association of Zoos and Aquariums
33	http://www.auduboninstitute.org/animals/	Audubon Nature Institue
34	http://violets-and-lace.com/archives/category/birds	Growing to a Better Future
35	http://philadelphiazoo.org	Philadelphia Zoo
36	http://whozoo.org	Fort Worth Zoo
37	http://www.reptilepark.com.au	Australian Reptile Park
38	http://www.publish.csiro.au	EMU Austral Ornithology
39	http://birdlife.org	BirdLife International
40	http://www.planteofbirds.com	Planteofthebirds.com
41	http://www.theanimalfiles.com	The Animal files.com
42	http://rosamondgifford.org/birds 	Rosamond Gifford Zoo
43	http://neotropical.birds.cornell.edu/portal/home	The Cornell Lab of Ornithoogy Neotropical Birds
44	http://www.kenyabirds.org.uk/darter.htm	Kenya Birds
45	http://www.allaboutbirds.org	The Cornell Lab of Ornithology All About Birds
46	http://www.nashvillezoo.org/piciformes/lybiidae.htm	Nashville Zoo
47	http://www.birdforum.net	Birdforum: the forum for wild birds and birding
48	http://www.sabisabi.com/wildfacts/	Sabi Sabi Wild Facts

				
Journals:				
1	Lucas, Frederic	The Taxonomic Value of the Tongue in Birds	Auk	Vol. 13, No. 2, April-June, 1896