Category: Phasianidae

Himalayan Quail (Ophrysia superciliosa)

[order] GALLIFORMES | [family] Phasianidae | [latin] Ophrysia superciliosa | [authority] Gray, 1846 | [UK] Himalayan Quail | [FR] | [DE] | [ES] | [NL] Himalaya Kwartel | [copyright picture] Birdlife Subspecies Genus Species subspecies Region Range Genus A single species from north-western India; possibly extinct. Physical charateristics Rather nondescript quail with red bill and […]

Territorial behaviour and population dynamics in red grouse Lagopus lagopus scoticus. II. Population models

Willow Ptarmigan (Lagopus lagopus) Science Article 1 abstract 1) Recent experiments on cyclic red grouse populations discovered that aggressiveness, induced by testosterone implants, depressed population density for more than a year after the implants were exhausted. 2) This confirms the observation, also made in previous studies of this territorial species, that aggressiveness can determine population […]

Willow ptarmigan chicks consume moss sporophyte capsules

Willow Ptarmigan (Lagopus lagopus) Science Article 5 abstract Willow Ptarmigan( Lagopus lagopus) chicks consumes sporophyt capsules, a moss, istichiumin clinatuma, at La Perouse Bay, near Churchill, Manitoba, Canada.S ix chicks(6 -16 days old) were examined over 3 yr, and crops of all chicks containemd moss capsules.In two chicks, capsules represented a substantial portion of the […]

Evidence of re-nesting after brood loss in Red Grouse Lagopus lagopus scoticus

Willow Ptarmigan (Lagopus lagopus) Science Article 9 abstract The Red Grouse Lagopus lagopus scoticus is a single-brooded species that can re-lay if a clutch is lost during the nesting period (Cramp & Simmons 1980). However, there is no reported evidence regarding second clutches being attempted after a brood of young chicks is lost. Indeed, there […]

Local genetic structure in red grouse (Lagopus lagopus scoticus): evidence from microsatellite DNA markers

Willow Ptarmigan (Lagopus lagopus) Science Article 11 abstract Allelic variation at seven hypervariable tri- and tetranucleotide microsatellite loci was used to determine levels of population differentiation between 14 populations of red grouse (Lagopus lagopus scoticus) in northeast Scotland, UK. Despite the potential for long-distance dispersal in grouse, and a semicontinuous habitat, significant population divergence was […]

Vegetation analysis of the territorial boundary between red grouse (lagopus scoticus) and ptarmigan (Lagopus mutus)

Willow Ptarmigan (Lagopus lagopus) 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 […]