Yellow Warbler (Dendroica petechia) Science Article 13 abstract Using morphological or behavioural features correlated with paternal care, females can, priorto mating, assess the potential parental contribution of males. As a first step in a study of female matechoice in yellow warblers, this study was designed to examine the importance of paternal care by malesof diVering […]
Do female Yellow Warblers (Dendroica petechia) incubatewhile in the nest during the laying period?
Yellow Warbler (Dendroica petechia) Science Article 2 abstract Although some passerine species heat their eggs during the brief periods of nest attentiveness early in the laying period (e.g., Haftorn 1981), egg temperature data are not available for Yellow Warblers (Dendroica petechia). As part of a larger study on the effect of Brown-headed Cowbird (Molothrus ater) […]
Speciation and rapid phenotypic differentiation in theyellow-rumped warblerDendroica coronatacomplex
Yellow Warbler (Dendroica petechia) Science Article 7 abstract The relative importance of the Pleistocene glacial cycles in driving avian speciationremains controversial, partly because species limits in many groups remain poorly understood,and because current taxonomic designations are often based on phenotypic characteristicsof uncertain phylogenetic significance. We use mtDNA sequence data to examinepatterns of genetic variation, sequence […]
Notes on the Yellow Warbler in Surinam.
Yellow Warbler (Dendroica petechia) Science Article 9 abstract The Yellow Warbler (Dendroica petechia) is a common winter visitor in Surinam. According to Zimmer (Amer. Mus.Novit. No. 1428, 1949: 5), only the race aestiva has been taken there, but the race brewsteri probably also occurst here since it has been found in both British and French […]
Yellow Warbler nests: building materials and cowbirdparasitism
Yellow Warbler (Dendroica petechia) Science Article 4 abstract Nests are traditionally defined as receptacles in which to house eggs and chicks; however, for the Yellow Warbler (Dendroica petechia), nests may have additional biological significance, especially with respect to Brown-headed Cowbird (Molothrus ater) parasitism. Michelle Mico, UFS (Delta Marsh) Annual Report, Vol. 30, 1995 Download article […]
Extra-pair young despite strong pair bonds in theEuropean Nuthatch ( Sitta europaea)
Wood Nuthatch (Sitta europaea) Science Article 2 abstract We choose the European Nuthatch (Sitta europaea), an extremely socially monogamous passerine species, to investigate the breeding biology and frequency of extra-pair activities of females. Breeding individuals live in strong pair bonds for their total life and defend their territory all year round. As a consequence of […]
Do male Nuthatches (Sitta europaea) guard their mates?
Wood Nuthatch (Sitta europaea) Science Article 1 abstract We expected to find a clearly manifested mate guarding behaviour in males of Sitta europaea as males of this socially monogamous species participate extensively in parental care. We recorded behaviour of nuthatches during one breeding season in primaeval stands of the Biatowie
Seasonal variation in bill morphology of Nuthatches Sitta europaea dietary adaptations or consequences?
Wood Nuthatch (Sitta europaea) Science Article 3 abstract Bills of juvenile Nuthatches continue to increase in size (length and depth) for up to three months after fledging. Bills of individual full-grown birds increase in length from April to October with a temporary drop in June, and decrease throughout the winter season. Bill depth increases from […]
Social Organization In A Nesting Population Of Eastern Willets (Catoptrophorus Semipalmatus)
Willet (Catoptrophorus semipalmatus) Science Article 1 abstract The breeding ecology of eastern Willets (Catoptrophorus semipalmatus) was studied over a 3-yr period in a salt marsh on the Atlantic coast of Virginia. During the study,171 adults were color-marked MARSHALL A. HOWE, The Auk 99: 88-102. January 1982 Download article download full text (pdf)
Predator avoidance behaviour of a solitary Willet attacked by a Peregrine Falcon
Willet (Catoptrophorus semipalmatus) Science Article 2 abstract During the non-breeding season, Willets Catoptrophorus semipalmatus use a variety of tactics to avoid predators and have been reported to take flight, submerge themselves inwater, and hide in or near marsh vegetation JOSEPH B. BUCHANAN, Bulletin 104 August 2004 Download article download full text (pdf)