TY  - SER
AU  - Bertellotti, Nestor Marcelo
AU  - Yorio, Pablo Martín
TI  - Age-related feeding behaviour and foraging efficiency kelp gulls larus dominicanus attending coastal trawlers in Argentina
KW  - AVES
KW  - Patagonia (Argentina)
N1  - En: Ardea, vol. 88 (2000)
ER  -