TY  - BOOK
AU  - Hailman,Jack Parker
TI  - The ontogeny of an instinct: the pecking response in chicks of the laughing gull (Larus Atricilla L.) and related species
PY  - 1967///
CY  - Leiden
PB  - E. J. Brill
KW  - Laughing gull
KW  - Birds
KW  - Behavior
KW  - Instinct
N1  - Summary in German; Bibliography: p. 135-142
ER  -