TY  - BOOK
AU  - Tyrrell,Esther Quesada
AU  - Tyrrell,Robert A.
TI  - Hummingbirds: their life and behavior a photographic study of the North American species 
PY  - 1985///
CY  - Inc., New York
PB  - Crown Publishers
KW  - Hummingbirds
KW  - Birds
KW  - North America
N1  - Bibliographies: p.205-209
ER  -