Pochard (Aythya ferina) Science Article 1 abstract Intersexual differences in feeding rates, aggression rates, an d feeding site selection were investi gated in a flock of up to 2700 Pochard Aythya ferina wintering at Salford docks, Greater M anchester (239 males per 100 females) . As often found elsewhere, females were less aggressive than males, […]

Pink-footed Goose (Anser brachyrhynchus) Science Article 1 abstract Individu al variation in spring migration strategies was analysed for neckbanded Pink-footed Geese Anser brachyrhynchus migrating from Denmark (D) via stopover sites in the Trondheimsfjord area (T) in mid-Norway and Vesteralen (V) in northern Norway to the breeding grounds in Svalbard, 1990-97 . Body condition of marked […]

Pink-footed Goose (Anser brachyrhynchus) Science Article 4 abstract The feeding behaviour of Pink-footed Geese Anser brachyrhynchus was studied in Adventdalen, Svalbard during 15-28 May 2004 to determine habitat use of newly arrived birds based on their distribution in relation to the major vegetation types present. Goose numbers increased from initial arrival on 15 May to […]

Pink-footed Goose (Anser brachyrhynchus) Science Article 2 abstract This report examines changes in the abundance and non-breeding distribution of the Greenland/Iceland population of Pink-footed Goose Anser brachyrhynchus during the period 1960/61 to 1999/2000. It also aims to evaluate the historical status of this population, to review published information on the ecology, population dynamics and conservation […]

Pink-footed Goose (Anser brachyrhynchus) Science Article 6 abstract Long-distance bird migration consists of several flight episodes interrupted by a series of resting and refuelling periods on stopover sites. We assessed the role of food availability as the determinant of staging decisions focusing on the following three aspects of food availability: intake rates, stochasticity in intake […]

Pink-footed Goose (Anser brachyrhynchus) Science Article 5 abstract We deployed satellite transmitters (PTTs) to Pink-footed Geese Anser brachyrhynchus to discover pre-nesting sites on Svalbard. 14 adult male were caught in Vest Stadil Fjord, Denmark and fitted with PTTs powered by batteries (n = 11; 30 g) or by solar power (n = 3; 45 g), […]

Pink-footed Goose (Anser brachyrhynchus) Science Article 3 abstract More than 25 000 Pink-footed Geese Anser brachyrhynchus migrate through and stage on sites on the West Coast of Jutland in Denmark every year in autumn and spring. There is currently concern at the rate of loss of suitable staging habitats, as well as problems of conflict […]

Muscovy Duck (Cairina moschata) Science Article 1 abstract Presented here are the feeding habits, attack behavior, daily and annual activity of adult of Phorcotabanuscinereus (Wiedeman, 1821), Chrysops laetus (Fabricius, 1805) and Phaeotabanus cajennensis (Fabricius, 1787), whilebiting a domestic duck, Cairina moschata (Linnaeus, 1758). The last two species were recorded for the first timeattacking birds. This […]

Marbled Duck (Marmaronetta angustirostris) Science Article 1 abstract To design methods to mark Marbled Teal Marmaronetta angustirostris, to test these methods in captive conditions and to apply them in field research in Spain. Location: Marked birds were released at El Hondo, Valencian community (eastern Spain) and Donana (south-west Spain). Captive trials were conducted at nearby […]

Marbled Duck (Marmaronetta angustirostris) Science Article 2 abstract Reintroduction or re-enforcement programmes are major tools in species conservation, but there is a need for more studies thatassess the influence of different husbandry and release methods on the survival of released animals. We investigated the survival ofglobally threatened Marbled Teal (Marmaronetta angustirostris) taken into captivity as […]