Quail (Coturnix coturnix) Science Article 1 abstract While handling the Eurasian quail, Coturnix coturnix, in a game stocking program, the junior author noted that the breeding males issued a frothy fluid from their cloac . Upon examination we noted that this secretion originated in a gland located above the dorsal lip of the cloaca. There […]

Quail (Coturnix coturnix) Science Article 4 abstract Since the 1970s, the decline of the occidental populations of European Quail Coturnix c. coturnix, a partial migrant Galliform species, has driven the release of domestic Japanese Quail Coturnix c. japonica into the wild as game birds. Recent experiments suggest that reproductive isolating mechanisms have not developed to […]

Ptarmigan (Lagopus muta) Science Article 9 abstract Sympatric populations of tetraonid birds tend to fluctuate in synchrony, at least onlocal scales. If shared parasites among sympatric populations of different tetraonidspecies are to operate as a local, synchronizing factor for population fluctuations atleast two conditions should be met Per R. Holmstad, Peter J. Hudson, Vigdis Vandvik […]

Ptarmigan (Lagopus muta) Science Article 5 abstract Leucocytozoon lovati infections were detected in free-flying rock ptarmigan (Lagopus mutus), an endangered species that inhabits alpine areas in Japan. Eight of nine adult birds tested positive for L. lovati infection. For comparison, two captive rock ptarmiganshatched in a breeding facility at the foot of the mountains were […]

Quail (Coturnix coturnix) Science Article 2 abstract Males of the Old World quail genus Coturnix are unique among birds in possessing a well-developed proctodeal gland. The gland and associated cloacal musculature are sexually dimorphic, androgen dependent, and produce a foamy substance that is introduced into the female along with semen during copulation, suggesting that the […]

Ptarmigan (Lagopus muta) Science Article 7 abstract Gyrfalcon predation on ptarmigan during the breeding season was studied innorth-east Iceland 1981

Ptarmigan (Lagopus muta) Science Article 6 abstract Cyclicity in population fluctuations has been described in a number of tetraonid species. Also, synchronyin these fluctuations

Ptarmigan (Lagopus muta) Science Article 8 abstract Stewart and Dalen (2008) argue that only temperate species were locked incryptic northern refugia during Pleistocene glacial cycles, while species presently found athigh latitudes had much wider distributions during glaciations. Christin L. Pruett & Kevin Winker, Climatic Change, 2007 Download article download full text (pdf)

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 […]

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 […]