The feeding behaviour and the composition of prey fed to Larus cachinnans nestlings was investigated for a period of three years in an urban environment. We visited 45 nests on 40 different buildings and examined the crop regurgitations of each young gull, keeping note of any other food around the nests. The foraging behaviour of adult gulls was scored in the urban environment with linear transects randomly choiced (200 hours of observation). The composition of the diet was of anthropic origins and the presence of typical herring gull’s prey like fishes and mussels was not significative. It was possible to observe a social transmission of information (Local Enhancement of Attention) related to the utilization of food resources.[...]
Comportamento alimentare del gabbiano reale mediterraneo (Larus cachinnans) nidificante in ambito urbano
LUCIDI, Pia
2005-01-01
Abstract
The feeding behaviour and the composition of prey fed to Larus cachinnans nestlings was investigated for a period of three years in an urban environment. We visited 45 nests on 40 different buildings and examined the crop regurgitations of each young gull, keeping note of any other food around the nests. The foraging behaviour of adult gulls was scored in the urban environment with linear transects randomly choiced (200 hours of observation). The composition of the diet was of anthropic origins and the presence of typical herring gull’s prey like fishes and mussels was not significative. It was possible to observe a social transmission of information (Local Enhancement of Attention) related to the utilization of food resources.[...]I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
