Ptarmigan (Lagopus muta) Science Article 2 abstract The location of the boundary between the territories of red grouse (Lagopus lagopus scoticus) and ptarmigan (Lagopus mutus) is related to the vegetation of the hills where both these species occur. If the he vegetation is dominated by tall, vigorous Calluna vulgaris, grouse occur. At greater altitudes where […]
Category: Galliformes
Geographic variation in body mass of rock ptarmigan Lagopus mutus in the Alps and the Pyrenees
Ptarmigan (Lagopus muta) Science Article 4 abstract We compared the body mass of adult rock ptarmigan Lagopus mutus shot in autumn in the French Pyrenees (Ariege), the French Alps (Hautes-Alpes) and the Italian Alps (Province of Verbania). Mean body mass of adults was greater in the Ariege than in the Hautes-Alpes both for cocks (466 […]
LIFE HISTORY OF THE MARBLED WOOD-QUAIL
Marbled Wood-Quail (Odontophorus gujanensis) Science Article 1 abstract The Marbled Wood-Quail (Odontophorus gujanensis) is widely distributed through the forested regions of northern South America, but in Central America it ranges no farther north than southweste.m Costa Rica, where it is represented by the Chiriqui race (0. g. castigatus) . Birds of this species are stout, […]
RELATIVE USE OF SECONDARY FORESTS BY CRACIDS INCENTRAL AMAZONIA
Marail Guan (Penelope marail) Science Article 1 abstract Curassows, guans, and chachalacas (familyCracidae) are large-bodied (400 g to 3500 g)galliform birds found exclusively in the Americas,with most species restricted to SouthAmerica (Delacour & Amadon 1973, delHoyo 1994). Despite their important role inforest dynamics as dispersers of seed plants,most cracid species remain poorly known(Strahl & Grajal […]
Effects of spring supplementary feeding on population density and breeding success of released pheasants Phasianus colchicus in Britain
Pheasant (Phasianus colchicus) Science Article 1 abstract The release of hand-reared ring-necked pheasants Phasianus colchicus in summer is a common practice in Britain to increase the number of birds available to hunters in winter. The breeding success of the birds which survive the shooting season is poor. Traditionally, birds are provided with supplementary wheat grain […]
Effects of spring supplementary feeding on population density and breeding success of released pheasants Phasianus colchicus in Britain
Pheasant (Phasianus colchicus) Science Article 1 abstract The release of hand-reared ring-necked pheasants Phasianus colchicus in summer is a common practice in Britain to increase the number of birds available to hunters in winter. The breeding success of the birds which survive the shooting season is poor. Traditionally, birds are provided with supplementary wheat grain […]
Notes on a Nest of the Guianan Chachalaca
Little Chachalaca (Ortalis motmot) Science Article 1 abstract Guianan Chachalaca (Ortalis motmot) is rather common in the coastal area and the savanna region of Surinam. It is not a bird of thick forests but its favorite habitat is dense patches of jungle along the rivers and creeks and also the sandy savanna’s covered with scattered […]
Notes on a Nest of the Guianan Chachalaca
Little Chachalaca (Ortalis motmot) Science Article 1 abstract Guianan Chachalaca (Ortalis motmot) is rather common in the coastal area and the savanna region of Surinam. It is not a bird of thick forests but its favorite habitat is dense patches of jungle along the rivers and creeks and also the sandy savanna’s covered with scattered […]
Molecular population phylogeny of the hazel grouse Bonasa bonasiain East Asia inferred from mitochondrial control-region sequences
Hazel Grouse (Bonasa Bonasia) Science Article 2 abstract A total of 62 mitochondrial haplotypes were detected from 174 samples of hazelgrouse Bonasa bonasia from Hokkaido, Primorskii, Sakhalin, Magadan, Siberiaand Bohemia using 428 bp of the mitochondrial DNA control region. Haplotypediversity for four populations in Hokkaido was more than 0.8, suggestingthat a reasonable population size had […]
Ethological and acoustical characters of the Chinese grouse(Bonasa sewerzowi), compared with sibling hazel grouse (B. bonasia) andruffed grouse (B. umbellus)
Hazel Grouse (Bonasa Bonasia) Science Article 1 abstract Woodland grouse of the genus Bonasa occur allopatrically in circum-polar temperate and boreal forests. An interspecificcomparison of the size and pattern of eggs, the downy feathers of pulli and other morphological characters in the threespecies suggests convergence in character sets. Yet species-specific differentiation is evident in the […]