Sources
http://birdweb.org/birdweb/bird_details.aspx?id=41
http://www.allaboutbirds.org/guide/Great_Blue_Heron/id
http://www.youtube.com/watch?v=sD7BEcWdZAA
http://animals.nationalgeographic.com/animals/birds/great-blue-heron/?source=A-to-Z
Book of North American Birds. Pleasantville, NY: Reader's Digest Association, 1990. Print.
http://www.allaboutbirds.org/guide/Great_Blue_Heron/id
http://www.youtube.com/watch?v=sD7BEcWdZAA
http://animals.nationalgeographic.com/animals/birds/great-blue-heron/?source=A-to-Z
Book of North American Birds. Pleasantville, NY: Reader's Digest Association, 1990. Print.