Prothonotary Warbler (Protonotaria citrea) Science Article 1 abstract Field observationos f ‘marked’ ProthonotaryW arblers (Protonotaricai trea)s uggestthat monospecifigcr oupso f trans-Gulf migrantsd epartf rom the samel ocation,m aintaincontactw hile flying at night, and form a homogeneousfl ock the next morning over thenorthern Gulf of Mexico. FRANK R. MOORE, Field Ornithol., 61(3):285-287 Download article download full […]
Category: Passeriformes
Abundance of two Dendrocincla woodcreepers (Aves:Dendrocolaptidae) in relation to forest structure in CentralAmazonia
Plain-brown Woodcreeper (Dendrocincla fuliginosa) Science Article 1 abstract Few studies have been conducted to verify how the structure of the forest affects the occurence and abundance of neotropical birds.Our research was undertaken between January 2002 and July 2004 at the Reserva Ducke, near Manaus (02
Swallow censuses in Northwest Germany(1986, 1991 and 1996)
Northern House-Martin (Delichon urbicum) Science Article 1 abstract Starting in 1961, from 50-100 villages and settlements in the industrial area of Hannover-Braunschweig (centred on Peine) have been checked at 5-year intervals to count the nesting populationof House Martin Delichon urbica and Barn Swallow Hirundo rustica, the method beinga direct nest count. The hitherto stable Barn […]
NOTES ON THE LIFE HISTORY OF THEMOUSE-COLORED FLYCATCHERIN SURINAM
Mouse-coloured Tyrannulet (Phaeomyias murina) Science Article 1 abstract The Mouse-colored Flycatcher (Phaeomyios murinu) is one of the many small and dull-colored flycatchers in tropical South America. For a description of the bird, its habitat, food, nest, and eggs, I refer the reader to my recently published ‘Birds of Surinam’ (Oliver and Bovd. Edinburgh. 1968). It […]
Autumn migration of thrushes over eastern Finland: A comparison of visible migration and ringing recovery patterns
Mistle Thrush (Turdus viscivorus) Science Article 1 abstract The migration of thrushes Turdus spp over eastern Finland was investigated using data from 4,482 foreign recoveries of five species ringed in Finland between 1913 and 2001, and records of visible migration of nearly 28,000 thrushes observed during diurnal autumn movements between 1996 and 2001. Ringing recoveries […]
Seasonal decline in clutch size of the Marsh Tit (Parus palustris) in relation to date-specific survival of offspring
Marsh Tit (Parus palustris) Science Article 1 abstract This paper documents and evaluates seasonal trends in reproductive performance in the Marsh Tit (Parus palustris)in southern Sweden. Clutch size decreased for nests started later in the season. This pattern held true both for second-year and older females when analyzed separately In dividual females adjusted clutch size […]
Habitat selection by Marsh Tits Poecile palustris in the UK
Marsh Tit (Parus palustris) Science Article 3 abstract The Marsh Tit Poecile palustris is a small, hole-nesting woodland passerine whose national population in the UK has declined by more than 50% in the last 25 years. To investigate possible causes for the species long-term decline, we examined habitat selection by Marsh Tits at three scales. […]
Timing and synchronisation of breeding in a Marsh Tit Parus palustris population from a primaeval forest
Marsh Tit (Parus palustris) Science Article 2 abstract Marsh Tits Parus palustris in Bialowieza National Park (E. Poland, 1985-97) were single brooded, laid their first eggs between 5 April and 11 May (mean 21 April). Nest building commenced on average 10-15 days before the first egg was laid, but overlapped partially with egg laying. Median […]
The impact of grazing animals on nesting success of grassland passerines in farmland and natural habitats: a field experiment
Meadow Pipit (Anthus pratensis) Science Article 1 abstract A study was made of the influence of trampling by grazing animals on the nesting success of real nests (meadow pipit, Anthus pratensis; water pipit, Anthus spinoletta; and skylark, Alauda arvensis) and simulated nests (caps from jam-jars filled by green plasticine) on pasture in the Orlicke Mountains […]
The effect of nest usurpation on breeding success of the black-billed magpie Pica pica
Magpie (Pica pica) Science Article 4 abstract The breeding of some birds, such as raptors or owls that do not build theirown nest, is often limited by the availability of nests constructed by otherbird species. When breeding habitats substantially lack natural nest sites(e.g., cavities in trees or cli s), a strong conflict over the nest […]