Savis Warbler (Locustella luscinioides) Science Article 1 abstract Seasonal and diel patterns of singing activity of Savi’s warblers (Locustella luscinioides) were studied in two areas of Central Europe 300 km apart, over a period of 18 years. We assessed about 4,600 records of individuals singing. Males were found to exhibit similar singing activity in both […]
Category: Passeriformes
THE BEHAVIOR OF SCALE-BACKED ANTBIRDS
Scale-backed Antbird (Hylophylax poecilinotus) Science Article 2 abstract Among birds that regularly capture arthropods flushed by swarms of army ants in South American forests (Willis and Oniki 1978), one of the species lowest in peck orders is the Scale-backed Antbird (Hylophylux poecilinota). Here I report on the specialized behavior patterns that allow it to become […]
NESTING RECORDS OF FIVE ANTBIRD SPECIES FROM THECOLOMBIAN AMAZON
Scale-backed Antbird (Hylophylax poecilinotus) Science Article 1 abstract Few nests of Amazonian antbirds (Thamnophilidae and Formicariidae) have been described.Here we present nesting records for five species of antbirds found in Tinigua National Park, Colombia. A pouchshapedpensile nest of the Warbling Antbird (Hypocnemis cantator) in a treefall gap within seasonally floodedforest contained two eggs colored like […]
Proficient incubation by inexperienced SavannahSparrows Passerculus sandwichensis
Savannah Sparrow (Passerculus sandwichensis) Science Article 3 abstract We compared the incubation behaviour of 1-year-old female Savannah Sparrows Passerculussandwichensis nesting for the first time with that of older females that had nested in previousyears on Kent Island, New Brunswick, Canada. Using temperature probes inserted into 32nests, we determined the length and variability of incubation shifts […]
Post-mortem digestion of stomach contents in the Savannah Sparrow
Savannah Sparrow (Passerculus sandwichensis) Science Article 7 abstract Van Koersveld (Proc. 10th Intern. Ornith. Congr.: 592-594,1 951) demonstrated that digestion in Corvidae continues for 20 to 30 minutes after death unless stopped in somemanner. He also demonstrated that soft-bodied forms such as earthworms were completely digested within that time and wireworm larvae were nearly gone […]
FIFTY:FIFTY OFFSPRING SEX RATIOS IN SAVANNAH SPARROWS (PASSERCULUS SANDWICHENSIS)
Savannah Sparrow (Passerculus sandwichensis) Science Article 2 abstract Over a 14 year period, we determined offspring sex ratios in a population ofSavannah Sparrows (Passerculus sandwichensis) breeding on Kent Island, an isolated 80 ha islandin the Bay of Fundy, New Brunswick, Canada, based on morphological measurements of318 independent juveniles and 361 returning adults of known parentage. […]
Home range and territory of the SardinianWarbler Sylvia melanocephala in Mediterraneanshrubland
Sardinian Warbler (Sylvia melanocephala) Science Article 1 abstract Sardinian Warbler Sylvia melanocephala is the commonest Sylvia warbler in shrubland with a Mediterranean climate with mild winters (Shirihai et al. 2001). It uses a wide range of habitats, such as scrublands and maquis, open forests containing bushy undergrowth, as well as agricultural areas and urban gardens. […]
Ecology and taxonomy of Savannah Sparrow Passerculus sandwichensis in Nuevo Leon, Mexico
Savannah Sparrow (Passerculus sandwichensis) Science Article 5 abstract no abstract Robert A. Behrstock and Ted L. Eubanks, Cotinga 7 (1997): 31-34 Download article download full text (pdf)
GEOGRAPHIC VARIATION IN EASTERN NORTH AMERICAN SAVANNAH SPARROWS
Savannah Sparrow (Passerculus sandwichensis) Science Article 4 abstract In attempting to identify Ohio specimens of the Savannah sparrow, the writer was confronted with the usual difficult problem familiar to investigators in this confusing group of birds. He was not long in discovering what had already been suspected, that more than one geographic race is represented […]
Nesting of the Mangrove Swallow (Tachycineta albilinea) in nests of the Rusty-margined (Myozetetes cayanensis) and Social (M. similis) Flycatchers
Rusty-margined Flycatcher (Myiozetetes cayanensis) Science Article 1 abstract In March-May 1999, I conducted observations on breeding ecology of Rusty-margined (Myozetetes cayanensis) and Social (M. similis) flycatchers along the coast of the Barro Colorado Island located on an artificial lake Gatun. The lake was created during the building of the Panama Canal. The island, a naturereserve, […]