Temperature seemed to be the most important cause of body variation in the Alpine Chough.

During the return, Mary learns how to see her own dæmon, who takes the form of a black Alpine chough.

A species of crow, an alpine chough, had settled on a rock directly in front of me, on the mountaintop.

Pyrrhocorax graculus vetus Kretzoi (alpine chough)

The most common bird isa the alpine chough which can be found scavenging at climber's huts or at the Jungfraujoch, a high altitude tourist destination.

The most common birds are the hedge sparrow, the gray callaba, the pechiazul, the crag martin, the alpine chough, the imperial eagle, and the black vulture.

The valley, which is exceptionnally rich in fauna, is a natural habitat for ibex, chamois, deer, marmots and hares and several bird species including the owl, golden eagle, bearded vulture and alpine chough.

Bird species include: the golden eagle, Bonelli's eagle, the bearded vulture or Lammergeier, the griffon vulture, Eleanora's falcon, peregrine falcon, lanner falcon, European kestrel, tawny owl, little owl, hooded crow, alpine chough, red-billed chough, and the hoopoe.