, 16(2), 58-83 (in Estonian with English summary).
The Dapingian and the lowermost Darriwilian stages yield the graptolite fauna of the Expansograptus hirundo
Biozone at several stratigraphic levels (Fig.
Species included Cory's shearwater, Calonectris diomedo; magnificent frigatebird, Fregata magnificens; cliff swallow, Hirundo
pyrrhonota; Bonaparte's gull, Larus philadelphia; Pomarine jaeger, Stercorarius pomarinus; masked booby, Sula dactylatra; brown booby, Sula leucogaster; and red-footed booby, Sula sula.
A clear case of sexually selected infanticide in the swallow Hirundo
, 2/1994, 31-15 (in Estonian with English summary).
The two humeri are too large for Riparia riparia and Stelgidopteryx serripennis and too small for Hirundo
Nesting success, growth rates, and recruitment of barn swallows Hirundo
rustica in Brazos County, Texas.
The researchers studied the barn swallow, Hirundo
rustica erythrogaster, which scientists regard as socially monogamous.
The occurrence on Borneo of Red-rumped Hirundo
daurica is yet to be confirmed, but the similar (and likely to be confused) Striated Swallow Hirundo
striolata is known from northern Borneo.
New microsatellites from the Pied Flycatcher Ficedula hypoleuca and the swallow Hirundo
The Bee-eater (Merops apiaster), terns (Sterna hirundo
and Sterna albifrons), sand martins (Riparia riparia) herons, gulls and duck species all rely on the area s mixed habitat features.
70 U R Corvus Chihuahuan Raven PR cryptoleuais Corvus corax Common Raven PR Hirundo
Barn Swallow SR rustica Baelophus Black-crested PR 4.
That positive pool was obtained from the center of the village of Viladecans, where different common migratory and sedentary birds such as Passer domesticus, Hirundo
rustica, or Delichon urbica feed and nest.
New island records of six tropical species Azurina hirundo
, Apogon guadalupensis, Scorpaenodes xyris, Chaenopsis alepidota, Chaetodon falcifer, and Chilomycterus reticulatus) from the northern Channel Islands extend the northern range of these species.
, 10, 4-16 (in Estonian with English summary).