Tyrrell, Esther Quesada. Hummingbirds : their life and behavior a photographic study of the North American species / text by Esther Quesada Tyrrell. - Inc., New York : Crown Publishers, 1985. - 212 p. : ill. ; 31cm. Bibliographies: p.205-209. Subjects--Topical Terms: Hummingbirds.Birds--North America.