Tag: all of Catharus

THE IMPORTANCE OF PRODUCTIVITY TO THE DYNAMICS OF A SWAINSON’S THRUSH POPULATION

Swainsons Thrush (Catharus ustulatus) Science Article 3 abstract We analyzed the population dynamics of Swainson’s Thrushes (Catharus ustulutus) breeding at the Palomarin Field Station of the Point Reyes Bird Observatory using 15 yearsbreeding at the Palomarin Field Station of the Point Reyes Bird Observatory using 15 years (1980-1994) of long-term, standardized mist-net data. The capture […]

AVIAN NESTLING PREDATION BY ENDANGERED MOUNT GRAHAM RED SQUIRREL

Hermit Thrush (Catharus guttatus) Science Article 2 abstract Studies using artificial nests or remote cameras have documented avian predation by redsquirrels (Tamiasciurus hudsonicus). Although several direct observations of avian predation events are known in the northern range of the red squirrel distribution, no accounts have been reported in the southern portion. We observed predation upon […]

Hermit Thrush Nesting in North Carolina

Hermit Thrush (Catharus guttatus) Science Article 4 abstract The Hermit Thrush (Catharus guttatus) is a widespread breeder innorthern forests in Canada and the United States. In the eastern U.S. thisspecies is found breeding from northeastern Minnesota east through NewEngland and New York and south to extreme northeastern New Jersey andnorthern Pennsylvania, with isolated populations in […]

Experimental fruit removal does not affect territory structure of wintering Hermit Thrushes

Hermit Thrush (Catharus guttatus) Science Article 3 abstract Food is generally considered to be the primary resource structuring winter territories in migrant songbirds, but there is little experimental evidence to support this. In southeastern Louisiana, ripe fruits, consumed opportunistically in the absence of preferred arthropod resources, are a primary food resource for wintering Hermit Thrushes […]

SINGING BEHAVIOR OF THE HERMIT THRUSH

Hermit Thrush (Catharus guttatus) Science Article 7 abstract Despite the Hermit Thrush’s wide distribution and exceptional singing ability, its vocal behavior is poorly known. In recorded samples from Arizona and New England, weshow that males have repertoires of 6 to 12 discrete song types. Those types can be presented in highly regular sequences, but the […]

DIET AND PREPARATION FOR SPRING MIGRATION INCAPTIVE HERMIT THRUSHES (CATHARUS GUTTATUS)

Hermit Thrush (Catharus guttatus) Science Article 6 abstract Seasonal changes in food choice by migratory birds often reflect changes in relative food abundance and increased energetic demand. Hermit Thrushes (Catharus guttatus) in southeastern Louisiana are highly frugivorous during winter but forage exclusively onarthropods just prior to spring migration. JENNIFER A. LONG AND PHILIP C. STOUFFER, […]

FRUIT ABUNDANCE AND LOCAL DISTRIBUTION OF WINTERING HERMIT THRUSHES (CATHARUS GUTTATUS)AND YELLOW-RUMPED WARBLERS (DENDROICA CORONATA) IN SOUTH CAROLINA

Hermit Thrush (Catharus guttatus) Science Article 1 abstract We conducted winter censuses of two short-distance migrants, Hermit Thrushes(Catharus gu atus) and Yellow-rumped Warblers (Dendroica coronata), over seven years in fi ve diff erent habitats to determine whether their local abundances could be predicted by fruit pulp biomass. Sampled habitats were stands of upland and bottomland […]

AUTUMN MIGRATION OF GRAY-CHEEKED AND BICKNELL’S THRUSHES AT KIPTOPEKE, VIRGINIA

Grey-cheeked Thrush (Catharus minimus) Science Article 1 abstract We examined the magnitude and timing of autumn migration for the Graycheeked-Bicknell’s Thrush complex using banding data collected during 27 autumn seasons at Kiptopeke, Virginia. MICHaeL D. WILSON AND BRYAN D. WATTS, J. Field Ornithol., 68(4):519-525 Download article download full text (pdf)

The Status of Gray-cheeked Thrush (Catharus minimus) in Newfoundland and Labrador

Grey-cheeked Thrush (Catharus minimus) Science Article 2 abstract Gray-cheeked Thrush and Bicknell’s Thrush were once considered to be conspecific (AOU 1957). Recently, they have been split into two distinct species (AOU 1998) – Bicknell’s Thrush (C. bicknelli), breeding in the Maritime provinces and New England, and Gray-cheeked Thrush, breeding in Newfoundland, the Labrador Peninsula, and […]