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The pin-tailed grouse is common in Spain, Russia and Northern China.

Pin-Tailed Sand Grouse

The pin-tailed grouse is common in Spain, Russia and Northern China.

The Red Grouse (Lagopus lagopus scoticus) is a subspecies of ptarmigans in the Phasianidae family of pheasants and partridges.

Red Grouse

The Red Grouse (Lagopus lagopus scoticus) is a subspecies of ptarmigans in the Phasianidae family of…

The Ptarmigans have feet much like those of a hare. Their legs and toes and soles of the feet are covered with feathers.

Ptarmigan

The Ptarmigans have feet much like those of a hare. Their legs and toes and soles of the feet are covered…

The winter plumage of a Ptarmigan, a grouse of the genus Lagopus. Usually a light reddish brown tint, it becomes pure white except for a black, white tipped tail in the winter months.

Rock Ptarmigan Winter Plumage

The winter plumage of a Ptarmigan, a grouse of the genus Lagopus. Usually a light reddish brown tint,…

A trio of ptarmigans (also known as white grouses) found in colder regions at higher altitudes. They feed on seeds and berries, and the tender shoots of plants.

Ptarmigans

A trio of ptarmigans (also known as white grouses) found in colder regions at higher altitudes. They…

The winter plumage of a Ptarmigan, a grouse of the genus Lagopus. Usually a light reddish brown tint, it becomes pure white except for a black, white tipped tail in the winter months.

Rock Ptarmigan Summer Plumage

The winter plumage of a Ptarmigan, a grouse of the genus Lagopus. Usually a light reddish brown tint,…

""Views of sternum and pectoral arch of the ptarmigan, Lagapus albus, reduced. Lateral view, with the bones upside down. a, sternum or breast-bone showing two long slender lateral processes; b, ends of sternal ribs; c, ends of humerous, or upper arm-bone, near the shoulder-joint; d, scapula, or shoulder-blade; e, coracoid; f, merry-thought, or furculum." Elliot Coues, 1884

Willow Grouse Sternum

""Views of sternum and pectoral arch of the ptarmigan, Lagapus albus, reduced. Lateral view, with the…

"Views of sternum and pectoral arch of the ptarmigan, Lagapus albus, reduced; viewed from below. a, sternum or breast-bone showing two long slender lateral processes; b, ends of sternal ribs; c, ends of humerous, or upper arm-bone, near the shoulder-joint; d, scapula, or shoulder-blade; e, coracoid; f, merry-thought, or furculum." Elliot Coues, 1884

Willow Grouse Sternum

"Views of sternum and pectoral arch of the ptarmigan, Lagapus albus, reduced; viewed from below. a,…