Red-breasted Flycatcher (Ficedula parva) Science Article 3 abstract We analysed data on the Red-breasted Flycatcher Ficedula parva collected in old- growth, oak-hornbeam stands in the primeval Forest, Poland during 1973- 2002. In this period, the Red-breasted Flycatcher’s return to its breeding sites became sig nificantly earlier whilst population size did not change significantly. We show […]
Category: Passeriformes
Is the later arrival of young male red-breasted flycatchers ( Ficedula parva ) related to their physical condition?
Red-breasted Flycatcher (Ficedula parva) Science Article 2 abstract Intraspecific variation in the arrival time of migratory birds to breeding grounds is common. Although this phenomenon has been explained in various ways, the condition-dependency of arrival is often evoked. I analyzed the arrival time of male red-breasted flycatchers Ficedula parva, a long-distance migratory passerine, in relation […]
Parental investment strategies in two species of nuthatch varywith stage-specific predation risk and reproductive effort
Red-breasted Nuthatch (Sitta canadensis) Science Article 1 abstract Life-history theory predicts that differences in reproductive effort and residual reproductive value amongspecies should result in differences in the level of risk that parents are willing to tolerate to themselvesversus their offspring. CAMERON K. GHALAMBOR & THOMAS E. MARTIN, ANIMAL BEHAVIOUR, 2000, 60, 263-267 Download article download […]
FIRST MAINLAND RECORD OF THE RED-BREASTED NUTHATCH FROM BAJA CALIFORNIA, MEXICO
Red-breasted Nuthatch (Sitta canadensis) Science Article 2 abstract On 15 September 1990 we collected a Red-breasted Nuthatch (Sitta canadensis) at Rancho Casa Verde. western slope of the Sierra Jubrez, east of Ensenada GORGONIO RUIZ-CAMPOS and LORENZO QUINTANA-BARRIOS, Western Birds 22:189-190, 1991 Download article download full text (pdf)
Red-eyed Vireo (Vireo olivaceus)
Red-eyed Vireo (Vireo olivaceus) Science Article 2 abstract Over the past several years, songbirds and the reasons for declines in their populationshave been a focal point of interest. Many species of neotropical songbirds birds haveexperienced population declines due to losses and fragmentation of breeding, wintering, andmigratory habitats. These long-distance migrants tend to be more vulnerable […]
GENETIC EVIDENCE FOR RELATIONSHIPS AMONGTHE RED-EYED, YELLOW-GREEN, ANDCHIVI VIREOS
Red-eyed Vireo (Vireo olivaceus) Science Article 4 abstract One of the most enduring puzzles in the systematics of New World birds concerns the relationships and taxonomic status of forms in the Red-eyed, Yellow-green and Chivi Vireo complex. In recent decades, the latter two taxa have been treated either as distinct species (A.O.U. 195 7, Hamilton […]
NEST SITE SELECTION AND NESTING SUCCESS OF THE REDEYEDVIREO IN CENTRAL PENNSYLVANIA
Red-eyed Vireo (Vireo olivaceus) Science Article 1 abstract We compared nest placement and characteristics of nesting habitat used by Red-eyed Vireos(Vireo olivaceous) in deciduous forests of central Pennsylvania during the breeding seasons of 1998 and 1999.Nest patches versus random patches (0.04-ha circular plots centered on nests or random points, respectively)and successful versus unsuccessful nest patches […]
RED-EYED VIREOS HAVE DIFFICULTY RECOGNIZINGINDIVIDUAL NEIGHBORS’ SONGS
Red-eyed Vireo (Vireo olivaceus) Science Article 3 abstract I investigated recognition of individual neighbors’ songs in a migratory species with large repertoires, the Red-eyed Vireo (Vireo olivaceous). To test for abilities to recognize individual neighbors, I measured responses to playbacks of neighbors songs from appropriateand inappropriate boundaries in two different years. Because the responses to […]
Red-backed Shrike (Lanius collurio) nest performance in a declining British population: a comparison with a stable population in Poland
Red-backed Shrike (Lanius collurio) Science Article 7 abstract We compare the breeding ecology of Red-backed Shrike Lanius collurio prior to its effective extinction (in 1990) as a breeding bird in the UK with that of a stable population in southwestern Poland. We use breeding performancedata derived from theUK and Polish Nest Record Schemes. Although theclutch […]
Blood parasites, reproduction and sexual selection in the red-backed shrike (Lanius collurio)
Red-backed Shrike (Lanius collurio) Science Article 2 abstract We investigated the occurrence of blood parasites on the red-backed shrike Lanius collurio during a three-year study in southern Czech Republic. Selected traits of shrike body morphology, male plumage and reproduction were studied with respect to the presence and intensity of h matozoan infection in blood samples […]