Black Grouse (Tetrao tetrix) Science Article 2 abstract Sexual selection in black grouse was studied through multivariate analyses of possible correlates of mating success using data from an eight year study of 10 different leks. Body size was weakly correlated with mating status (0 or >= 1 mating) and tail length was significantly correlated with […]
Category: Phasianidae
Combs and sexual selectionin black grouse (Tetrao tetrix).
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 […]
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 […]
Increasing group size dilutes black fly attack rate in Black Grouse
Black Grouse (Tetrao tetrix) Science Article 3 abstract Black flies (Simuliid ) have been observed to harass Black Grouse (Tetrao tetrix) innorthern Finland during summer. We studied experimentally whether group size affectsthe attack rate of black flies on Black Grouse. The increase in flock size diluted the rate ofthe black fly attacks in the Black […]
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 […]
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) […]
New Zealand Quail (Coturnix novaezelandiae)
The story It is difficult to account for the disappearance of the New Zealand Quail. A closely related, possibly conspecific, Australian species, the Stubble Quail (Coturnix pectoralis), flourishes in its homeland, yet the New Zealand birds failed to survive the coming of Europeans. The species seems to have been common on the grass-covered downs of […]
Hazel Grouse (Bonasa Bonasia)
[order] GALLIFORMES | [family] Phasianidae | [latin] Bonasa Bonasia | [UK] Hazel Grouse | [FR] Gelinotte des bois | [DE] Haselhuhn | [ES] Grevol | [NL] Hazelhoen Subspecies Genus Species subspecies Breeding Range Breeding Range 2 Non Breeding Range Tetrastes bonasia EU nw, nc, ne Tetrastes bonasia amurensis ne China to n Korea Tetrastes bonasia […]