Vol. 16 No. 1 (2001), Short Communications
Vol. 16 No. 1 (2001)

A new colony of Olrog’s Gull (Larus atlanticus) in the Bahía Blanca estuary, Argentina

Short Communications
Published 01-08-2001
J. Kaspar V. Delhey
Quillén 75, 8000 Bahía Blanca, Buenos Aires, Argentina
Pablo F. Petracci
Patricios 712, 8000 Bahía Blanca, Buenos Aires, Argentina
Carlos M. Grassini
Cátedra de Biología General, Departamento de Biología, Bioquímica y Farmacia, San Juan 670, 8000 Bahía Blanca, Buenos Aires, Argentina
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Keywords

Argentina
Bahía Blanca
breeding colony
conservation
Larus atlanticus

How to Cite

V. Delhey, J. Kaspar, Pablo F. Petracci, and Carlos M. Grassini. 2001. “A New Colony of Olrog’s Gull (Larus Atlanticus) in the Bahía Blanca Estuary, Argentina”. El Hornero 16 (1): 39-42. https://doi.org/10.56178/eh.v16i1.914.
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Abstract

A new colony of Olrog’s Gull (Larus atlanticus) was found on a small island in the Bahía Blanca estuary, near Ingeniero White Harbour. The total number of nests was 1635, distributed in 11 groups or sub-colonies ranging from 25 to 530 nests, inside a large Kelp Gull (Larus dominicanus) colony. This colony of Larus atlanticus is the largest reproductive group reported so far. The Bahía Blanca estuary area constitutes therefore the most important reproductive site of this vulnerable species, perhaps comprising more than 60% of the known reproductive population.

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References

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