TY  - BOOK
AU  - Gray,Annie P.
TI  - Bird hybrids: a check-list with bibliography 
PY  - 1958///]
CY  - Farnham Royal, Bucks
PB  - Commonwealth Agricultural Bureaux
KW  - Birds
KW  - Nomenclature
KW  - Hybridization
KW  - Bibliography
N1  - "Companion volume to Mammalian hybrids."; Bibliography: p. 281-359
ER  -