Aquatic Warbler (Acrocephalus paludicola) Science Article 4 abstract The paper presents data of the 1999?2005 monitoring of the Aquatic Warbler (Acrocephaluspaludicola) density, its timing of breeding and breeding success at the Zvanets mire, which hosts about35% of the European and 64% of the Belarusian population of the species Alexander KOZULIN, Lyubov VERGEICHYK, Acta Zoologica Lituanica, […]
Category: Passeriformes
AN INTRODUCTION TO AQUATIC WARBLER CONSERVATIONIN WESTERN POMERANIA
Aquatic Warbler (Acrocephalus paludicola) Science Article 13 abstract The Aquatic Warbler (Acrocephalus paludicola) is a globallythreatened bird species. Around 1900, it was one of the most widespread birdsin Central-European fen mires. The population severely decreased as aconsequence of wetland drainage. Franziska Tanneberger et al, Institute of Botany and Landscape Ecology, University of Greifswald Download article […]
Commercially cut reed as a new and sustainable habitatfor the globally threatened Aquatic Warbler
Aquatic Warbler (Acrocephalus paludicola) Science Article 8 abstract The Aquatic Warbler (Acrocephalus paludicola) is a song bird breeding in fenmires and similarly structured other wetlands with a water depth of 1
SEASONAL STATUS OF THE AMERICAN PIPIT IN IDAHO
American Pipit (Anthus rubescens) Science Article 2 abstract In Idaho, the American Pipit (Anthus rubescens) has been considered primarily a migrant, either locally common but erratic (Larrison et al. 1967) or uncommon in spring and common in fall (Burleigh 1972). Several other writers considered it an abundant fall migrant but gave no indication of actual […]
Hatchability of American Pipit eggs in the Beartooth Mountains, Wyoming
American Pipit (Anthus rubescens) Science Article 1 abstract Hatchability often is reported as the proportion of eggs laid that hatch. While this may be the demographic value of ultimate interest as an index of recruitment, such broad usage makes it difficult or impossible to identify more specific proximate factors affecting hatching and the extent that […]
ACORN WOODPECKER PREDATION ON CLIFF SWALLOW NESTS
American Cliff Swallow (Petrochelidon pyrrhonota) Science Article 2 abstract Unlike many other woodpeckers that feed on woodboringinsects and larvae, Acorn Woodpeckers (MeIanerpes formicivorus) feed primarily on acorns, insects caught by flycatching, and sap (Bent 1939, MacRoberts 1970, MacRoberts and MacRoberts 1976). They also supplement their diets with an occasional small lizard (Koenig, pers. comm.), fruit, […]
The life history and ecology of the cliff swallow bug, Oeciacus vicarius (Hemiptera: Cimicidae)
American Cliff Swallow (Petrochelidon pyrrhonota) Science Article 4 abstract The life history of the Ciff swallow bug Oeciacus vicarius is closely associated with that of the cliff swallow Hirundo pyrrhonota during the bird’s three month breeding period in the Nearctic region. The bugs are long lived, feed rapidly and lay eggs in several clutches that […]
AN ALTITUDINAL CLINE IN CONDUCTANCE OF CLIFF SWALLOW (PETROCHELIDON PYRRHONOTA) EGGS TO WATER VAPOR
American Cliff Swallow (Petrochelidon pyrrhonota) Science Article 1 abstract The rate of diffusion of water molecules through air is inversely related to atmospheric pressure; diffusivity of water vapor, therefore, is greater at high altitudes than at lowelevations. Assuming that conservation of water in avian eggs is essential for normal development and hatching of embryos, we […]
NESTLING MORTALITY IN SWALLOWS DUE TO INCLEMENT WEATHER
American Cliff Swallow (Petrochelidon pyrrhonota) Science Article 6 abstract For two consecutive years 24 hours or more of continuous precipitationduring early June resulted in mortality in nestlingT ree Swallows{ Iridoprocnebicolor} and Cliff Swallows {Petrochelidonp yrrhonota} in Marin County,California. There have been few reports of swallow nestling mortality caused byinclement weather in North America. Chapman (1955) […]
Deterring cliff-swallow nesting on highway structures using bioacoustics and surface modifications
American Cliff Swallow (Petrochelidon pyrrhonota) Science Article 3 abstract Cliff swallows (Petrochelidon pyrrhonota) are migratory birds that breed in coloniesand frequently nest on highway structures. Protected by the Migratory Bird Treaty Act of1918, swallows in their active nests cannot be harmed by nesting-control methods. Thiscauses problems and delays in maintenance of structures by divisions of […]