Lesser Kiskadee (Pitangus lictor) Science Article 1 abstract Ornithologists have attributed both domed and open nests to the Lesser Kiskadee (Pitangus lictor) because they confused it with severalo ther strikingly similar neotropicalf lycatchers.P itanguss ulphuratust, he only one of these flycatchers that reaches the United States, always builds a domed nest. But Haverschmidt( Auk, 74: […]
SEX DETERMINATION OF LESSER KESTREL (Falco naumanni ) BY PCRRFLP FROM FEATHER SAMPLES
Lesser Kestrel (Falco naumanni) Science Article 1 abstract The Lesser Kestrel (Falco naumanni) is a small colonial migratory falcon, mostly insectivorous (grasshoppers and locusts), that breeds in South Italy between March and September. Populations have decreased by 90% since the middle of the 20th century in Europe Costantini V., Guaricci et al, S.I.R.A., 2007 Download […]
Male shrikes punish unfaithful females
Lesser Grey Shrike (Lanius minor) Science Article 2 abstract The costs to females of participating in extrapair copulations is an interesting but hitherto neglected topic in behavioral ecology. An obvious potential cost to females is male physical sanctions. However, although retaliation and punishment by male partners has been proposed as a basic cost for female […]
Do melanin-based tail patterns predict individual quality and sex in Lesser Grey Shrikes Lanius minor ?
Lesser Grey Shrike (Lanius minor) Science Article 3 abstract In many bird species, males display colourful, usually carotenoid or structurally based plumage ornaments. On the other hand, there are many bird species and entire avian genera that are achromatic, i.e. with predominantly white, grey and black plumage colours. Achromatic plumage is a typical feature in […]
Vineyards harbour a relict population of Lesser Grey Shrike (Lanius minor) in Mediterranean France
Lesser Grey Shrike (Lanius minor) Science Article 1 abstract Modem agriculture contributed to the decline of many bird species through habitat degradation or habitat loss during the second half of the 20th century in western Europe. Areas where traditional agriculture has been maintained still allow many species to breed and survive, some of them now […]
Presence et nidification d’une Sterne voyageuse (Sterna bengalensis) dans unecolonie de Sterne caugek (Sterna sandvicensis) sur Ie Banc d’Arguin (France).
Lesser Crested Tern (Thalasseus bengalensis) Science Article 1 abstract Le Ier juin 1974, je photographiais une Sterne voyageuse (Sternabengalensis) en vol au-dessus de l’importante colonie de Sterne caugek(Sterna sandvicensis) du Banc d’Arguin (Bassin d’Arcachon, littoral atlantiquefranl;ais). Pierre Petit, Ardea, vol. 64, 1976 Download article download full text (pdf)
Herring Gull Larus argentatus and Lesser Black-backed Gull L. fuscus feeding at fishing vessels in the breeding season: Competitive scavenging versus efficient flying
Lesser Black-backed Gull (Larus fuscus) Science Article 4 abstract The distribution and feeding range of Herring Gulls and Lesser Black-backed Gulls breeding on the Dutch Wadden Sea islands were assessed, using the results of ship-based surveys in the southern North Sea. The occurrence of both species in association with commercial fishing vessels is described in […]
Effects of vegetation on nest microclimate and breeding performanceof lesser black-backed gulls ( Larus fuscus)
Lesser Black-backed Gull (Larus fuscus) Science Article 1 abstract For birds that breed in large colonies, the overall area occupied by the colony generally comprises several sub-areas that di.er in physical and social features such as vegetation and breeding density. Birds arriving at a breeding colony select their nesting sites through a hierarchical process of […]
The nominate Lesser Black-backed Gull Larus fuscus fuscus, a gull with a tern-like feeding biology, and its recent decrease in northern Norway.
Lesser Black-backed Gull (Larus fuscus) Science Article 3 abstract In northern Norway, Larus fuscus fuscus feeds mainly offshore on the wing on pelagic fish and fishery discards. It avoids competition with other large gulls for concentrated stationary food sources such as garbage dumps and fish-factories. It is also inferior to the Herring Gull L. argentatus […]
Parental condition, brood sex ratio and differential young survival:an experimental study in gulls ( Larus fuscus)
Lesser Black-backed Gull (Larus fuscus) Science Article 2 abstract Empirical evidence is growing that the offspring sex ratio in birds can be biased in relation to the body condition of parents during breeding. The sex ratio bias may come about because (1) the actual production of the two sexes may be skewed and/or (2) there […]