Blue Chaffinch (Fringilla teydea) Science Article 1 abstract The Blue Chaffinch Fringilla teydea is one of a few Palearctic species for which biometric data are lacking from the field; we address this issue here. Blue Chaffinches were caught by mist net, at ten sites on Tenerife (Canary Islands), and measured. Data on biometrics and moult […]
International Single Species Action Planfor the Conservation of theBlack-winged Pratincole
Black-winged Pratincole (Glareola nordmanni) Science Article 1 abstract The Black-winged Pratincole breeds mainly in the steppe and desert belt of Eurasia from Romaniaand Ukraine in the west to the Russian part of the Altai and to Kazakhstan in the east. It winters inAfrica south of the Sahara desert. Migration through the Middle East countries such […]
NONBREEDING HABITAT SELECTION AND FORAGING BEHAVIOR OF THE BLACK-THROATED GREEN WARBLERCOMPLEX IN SOUTHEASTERN MEXICO
Black-throated Green Warbler (Dendroica virens) Science Article 4 abstract We studied the ecological distribution and foraging behavior of three speciesin the Black-throated Green Warbler (Dendroica virens) species group in the Eastern Highlandsof Chiapas, Mexico. The three species, Black-throated Green, Hermit (D. occidentalis)and Townsend’s (D. townsendi) Warblers are largely allopatric on the breeding grounds andvariably sympatric […]
SPATIAL VARIATION IN FORAGING OF THE BLACK-THROATED GREEN WARBLER ALONG THE SHORELINE OF NORTHERN LAKE HURON
Black-throated Green Warbler (Dendroica virens) Science Article 1 abstract The Great Lakes strongly influence local climate, vegetation, and animal communities,all of which are important to both migrating and breeding birds. This influencecan be considerable during springtime in nearshore habitats, as onshore winds depress airtemperatures, delaying development of shoreline vegetation relative to inland areas. Thesedevelopmental differences […]
EXPERIMENTAL EVIDENCE FOR INTRINSIC MICROHABITAT PREFERENCES IN THE BLACK-THROATED GREEN WARBLER
Black-throated Green Warbler (Dendroica virens) Science Article 2 abstract Black-throated Green Warblers (Dendroica virens) use coniferous vegetation as foraging and perching substrates at coastal sites in Maine and predominantly deciduous vegetation at inland sites in interior New Hampshire, despite the availability of both substrates. I tested the hypothesis that these habitat use patterns result from […]
ADDITIONAL RECORD OF THE BLACK-THROATED GREEN WARBLER IN PUERTO RICO, WITH SOME OBSERVATIONS ON FORAGING BEHAVIOR
Black-throated Green Warbler (Dendroica virens) Science Article 3 abstract The Black-throated Green Warbler (Dendroica virens) ranges from eastern Canada to Colombia,including the West Indies where it is uncommon and restricted to the Greater Antilles (Clements 1978, Faarborgh & Terborgh 1980). The species is considered a rare winter migrant to the islands, occurring from mid September […]
Nest and breeding behavior of the Black-tailed Leaftosser Sclerurus caudatus (furnariidae)
Black-tailed Leaftosser (Sclerurus caudacutus) Science Article 1 abstract The genus Sclerurus consists of six species that are uniform morphologically (excluding bill length and width) and have similar ecology and behavior (Vaurie 1980). The range of Sclerurus extends from Mexico and Central America to Bolivia and eastern Brazil (Vaurie 1980, Ridgely & Tudor 1994). Typically found […]
Components of fitness in Lapwings Vanellus vanellus and Black-tailed Godwits Limosa limosa during the breeding season: Do female body mass and egg size matter?
Black-tailed Godwit (Limosa limosa) Science Article 3 abstract Body mass of incubating females, their egg sizes, hatching success, hatchling masses and brood survival were recorded for individually colour-marked Lapwings Vanellus vanellus and Black-tailed Godwits Limosa limosa breeding on meadows in Kiskunsag National Park, 50 km south of Budapest, Hungary. We found no relationships between egg […]
Body dimensions and mass of breeding and hatched Black-tailed Godwits(Limosa 1. limosa): a comparison between a West Siberian and a Dutchpopulation
Black-tailed Godwit (Limosa limosa) Science Article 1 abstract The breeding biology and habitat preference of the Black-tailed Godwit (Limosa l. limosa)was studied in the West Siberian forest-steppe in May and June 1995. The godwits preferreed and sedge marsh and edges of ponds and depressions. They breed in small aggrega-tions together with other waders such as […]
The effectiveness of nest defense by Black-Tailed Godwits
Black-tailed Godwit (Limosa limosa) Science Article 2 abstract This paper describes measurements of the frequency of aerial attacks on avian predators by nesting Black-tailed Godwits. The effects of these attacks on the ranging behaviour of Carrion Crows and the removal of eggs from artificial nests are assessed and compared with the effects of similar attack […]