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 […]
Category: Passeriformes
Haemoproteids and microfilariae in hawfinches in the Czech Republic
Hawfinch (Coccothraustes coccothraustes) Science Article 1 abstract One to three out of four different species of protozoanparasites were detected in ten individual hawfinches (Coc-cothraustes coccothraustes Linnaeus, 1758) as follows:Haemoproteus fringillae (Labbe, 1894), Leucocytozoondubreuili Math is et Lege r, 1911, L. fringillinarum Wood-cock, 1910, and L. majoris (Laveran, 1902). K, HAUPTMANOVA, V. BARUS, I. LITERAK, V. […]
PREDATION AND ANTIPREDATOR BEHAVIOR AT GUIANAN COCK-OF-THE-ROCK LEKS
Guianan Cock-of-the-rock (Rupicola rupicola) Science Article 1 abstract I documented predator attacks and antipredator behavior at four display sites of Guianan Cock-of-the-Rock (Rupicolaru picola) in Suriname from 1980 to 1985. Most observations were made at a large lek that averaged 55 territorial males, with supplemental data on display groups of 1, 2, and 6 males. […]
NOTES ON THE BEHAVIOR AND ECOLOGY OF THE RED-COTINGAS (COTINGIDae: PHOENICIRCUS)
Guianan Red-Cotinga (Phoenicircus carnifex) Science Article 1 abstract The two specieso f red-cotingas,P hoenicircus, are little-known birds with a patchy distribution in the rain forests of northern and central South America. We observed the foraging, displays, and vocalizations of the Guianan Red-Cotinga (P. curnifex) in Suriname and of the Black-necked Red-Cotinga (P. nigricollis) in northeastern […]
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 nest and eggs of Tolmomyias poliocephalus
Grey-crowned Flycatcher (Tolmomyias poliocephalus) Science Article 1 abstract The tropical New World flycatchers of the genus Tolnzomyias are small and dull colored, resembling somewhat those of the much better known and more northward ranging genus Enzpidonaz. They are, however, rather heavy-hilled, in this respect resembling the species of RhynchocyclztsH. ellmayr (1927. Cat. Birds of the […]
Effects of parental effort on second brood, moult and survival in the Grey Wagtail Motacilla cinerea
Grey Wagtail (Motacilla cinerea) Science Article 1 abstract Negative effects of current reproductive effort on components of future reproduction, called the cost of reproduction’, have been shown experimentally in a wide range of avian species . A possible mechanism for the mediation of these costs between successive breeding se as ons may be the impairment […]
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 […]
Documentation of a Polygynous Gray Catbird
Grey Catbird (Dumetella carolinensis) Science Article 2 abstract Polygyny occasionally occurs in passerine species that are generally socially monogamous.We document the second case of polygynous mating in the Gray Catbird (Dumetella carolinensis) and provide the first detailed account of this behavior. Daniel Hanley et al., The Wilson Journal of Ornithology 119(3):499-502, 2007 Download article download […]
PATTERNS OF HaeMOPROTEUS BECKERI PARASITISM IN THEGRAY CATBIRD (DUMATELLA CAROLINENSIS) DURING THEBREEDING SEASON
Grey Catbird (Dumetella carolinensis) Science Article 4 abstract We determined the prevalence and intensity of blood parasites in breeding graycatbirds (Dumatella carolinensis) at Killbuck Wildlife Area in Wayne and Holmes Counties, Ohio(USA) from June through August 2000. Of 98 catbirds sampled, 40 (40.8%) had detectableinfections of Haemoproteus beckeri. Overall prevalence of H. beckeri in this […]