Black Grouse (Tetrao tetrix) Science Article 6 abstract We studied supra-orbital combs in lekking black grouse (Tetrao tetrix) in relation to sexual selection at five leks in Finland 1991-1998 and four leks in Sweden 1992-1995. Comb size was estimated in two ways: by observing its natural size in the field at different behaviors (‘observed comb […]
Category: Galliformes
An experimental assessment of the potential effects of human disturbance on Black Grouse Tetrao tetrix in the North Pennines, England
Black Grouse (Tetrao tetrix) Science Article 5 abstract In the United Kingdom, Black Grouse Tetrao tetrix have declined in range and abundance during the 20th century. In England at present, birds are largely found only on the margins of managed grouse moors in the north, where more than 80% of birds are confined to the […]
RELATIVE USE OF SECONDARY FORESTS BY CRACIDS INCENTRAL AMAZONIA
Black Curassow (Crax alector) 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 […]
Dispersal and migration of female Black Grouse Tetrao tetrix in boreal forests
Black Grouse (Tetrao tetrix) Science Article 4 abstract We studied the movement patterns of 209 female Black Grouse radio-marked during 1990-1993 in eastern central Finland. Females were captured for marking in late winter, and the transmitters had a life expectancy of 6-10months.Adults tended to initiate spring movement to breeding range earlier than yearlings. The median […]
Lesser Prairie Chicken (Tympanuchus pallidicinctus)
[order] GALLIFORMES | [family] Phasianidae | [latin] Tympanuchus pallidicinctus | [UK] Lesser Prairie Chicken | [FR] Tetras pale | [DE] Kleines Prariehuhn | [ES] Gallo de las Praderas Menor | [NL] Klein Prairiehoen Subspecies Monotypic species Physical charateristics A small, pale prairie-chicken; best identified by range. The gular sacs of the male are dull purplish […]
Black Curassow (Crax alector)
[order] GALLIFORMES | [family] Cracidae | [latin] Crax alector | [UK] Black Curassow | [FR] Hocco alector | [DE] Glattschnabel-Hokko | [ES] Pavon Guayanes | [NL] Zwarte Hokko Subspecies Genus Species subspecies Region Range Crax alector SA n Amazonia Genus Physical charateristics Both genders have black plumage, white abdomens, and identically sized and colored ceres. […]
White-headed Piping-Guan (Pipile cumanensis)
[order] GALLIFORMES | [family] Cracidae | [latin] Pipile cumanensis | [UK] White-headed Piping-Guan | [FR] Penelope siffleuse | [DE] Blaukehl-Guan | [ES] Pava Goliazul | [NL] Blauwkeelgoean Subspecies Monotypic species Genus Physical charateristics The blue-throated piping guan, has glossy black feathers with large, white wing patches, and the chest and wing tips are flecked with […]
California Quail (Callipepla californica)
[order] GALLIFORMES | [family] Odontophoridae | [latin] Callipepla californica | [UK] California Quail | [FR] Colin de Californie | [DE] Schopfwachtel | [ES] Codorniz de California | [NL] Californische Kuifkwartel Subspecies Genus Species subspecies Breeding Range Breeding Range 2 Non Breeding Range Callipepla californica NA, MA sw Canada to Baja California Callipepla californica achrustera s […]
Sharp-tailed Grouse (Tympanuchus phasianellus)
[order] GALLIFORMES | [family] Phasianidae | [latin] Tympanuchus phasianellus | [UK] Sharp-tailed Grouse | [FR] Tetras a queue fine | [DE] Schweifhuhn | [ES] Gallo de las Praderas Chico | [NL] Stekelstaarthoen Subspecies Genus Species subspecies Breeding Range Breeding Range 2 Non Breeding Range Tympanuchus phasianellus NA nc, nw Tympanuchus phasianellus campestris c Canada to […]
Spruce Grouse (Falcipennis canadensis)
[order] GALLIFORMES | [family] Phasianidae | [latin] Falcipennis canadensis | [UK] Spruce Grouse | [FR] Tetras du Canada | [DE] Tannenhuhn | [ES] Gallo Canadiense | [NL] Bossneeuwhoen Subspecies Genus Species subspecies Breeding Range Breeding Range 2 Non Breeding Range Tetrao canadensis Falcipennis canadensis NA Alaska, Canada, n USA Falcipennis canadensis atratus s Alaska (USA) […]