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Category: Anatidae

Male achromatic wing colouration is related to body condition and female reproductive investment in a dichromatic species, the upland goose

Upland Goose (Chloephaga picta) Science Article 1 abstract In many bird species, achromatic plumage patch size can serve as a male status signal, but the use of variations in the achromatic colours themselves as a quality signal has only recently come into focus. In our study, we sought to determine whether achromatic plumage reflects individual […]

Lesser White-fronted Goose expedition to Eastern Syria, February 2007

Lesser White-fronted Goose (Anser erythropus) Science Article 3 abstract The expedition was carried out on 9-11 February 2007, as planned in earlier correspondence with the team working on the protection of Lesser White-fronted Goose Anser erythropus as well as Syrian and regional ornithologists. Participants included Anssi Kullberg currently working for the Finnish Embassy in Damascus […]

Wintering Greylag Geese Anser anser in North-Africa.

Greylag Goose (Anser anser) Science Article 3 abstract Goose counts at the three major wintering grounds of North Africa from 1981/82 to 1988/89 are presented and discussed. The origin of the Greylag Geese wintering there is documented by individually marked geese. These neck-banded geese also proved that movements occur between Tunisia and Algeria and supported […]

Remote sensing as a technique to assess reedbed suitability for nesting Greylag Geese Anser anser.

Greylag Goose (Anser anser) Science Article 1 abstract We studied Greylag Goose Anser anser nest distribution in relation to reed stem density in the Tgmmerby Fjord reedbed, Denmark, using rial photography to locate nests . Digitised photographs were used to establish a relationship be tween spectral signature and reed stem density. This technique classified 71% […]

Site fidelity of Icelandic Greylag Geese between winters

Greylag Goose (Anser anser) Science Article 9 abstract Britain supports almost the entire Icelandic population of Greylag Geese Anser anser in winter and has a special responsibility for the conservation of these birds. To facilitate the successful management of this population, the aim of this analysis was to ascertain the degree of site fidelity on […]

The timing of pair formation in harlequin ducks

Harlequin Duck (Histrionicus histrionicus) Science Article 1 abstract The timing of pair formation varies within and among species of ducks. In this study we documented the chronology of pair formation in a population of wintering Harlequin Ducks (Histrionicus histrionicus) in southwestern British Columbia. Harlequin Ducks began forming pair bonds in October and over half of […]

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