TY  - SER
AU  - Quintana, Flavio
AU  - Yorio, Pablo Martín
TI  - Kleotoparasitism by kelp gulls on royal and gayenne terns at Punta Leon, Argentina
KW  - AVES
KW  - Patagonia (Argentina)
KW  - Punta León (Chubut : Argentina)
N1  - En: J. Field Ornithol., vol. 70, no. 3 (1999)
ER  -