Category: Anseriformes

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 […]

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 […]

Exploitation of a new staging area in the Dutch Wadden Sea by Greylag Geese Anser anser: The importance of food-plant dynamics.

Greylag Goose (Anser anser) Science Article 8 abstract The colonisation by Greylag Geese Anser anser of a new autumn migration staging area was studied on the island of Schiermonnikoog, The Netherlands. Over 500 Greylag Geese first visited the island in 1991. During subsequent years, peak numbers rose to 700-900 birds. The geese most likely originated […]