TY  - BOOK
AU  - Chantler,Phil
TI  - Swifts: a guide to the swifts and treeswifts of the world 
SN  - 0300079362
U1  - 598.762 
PY  - 2000///
CY  - New Haven
PB  - Yale University Press
KW  - Swifts
KW  - Identification
KW  - Tree swifts
KW  - Vencejo
KW  - Identificación
KW  - Árbol de vencejos
KW  - Pajaro
N1  - Includes bibliographical references (p. 258-266)
ER  -