
Photo: Nicolás Villaseca Merino · CC BY-SA 4.0 (May be cropped or resized)
Falco peregrinus
Habitat
Near large natural cliffs in one study
Size
34–58cm
Wingspan
74–120cm
Weight
Males 330–1,000g; females 700–1,500g
The peregrine falcon has a body length of 34 to 58cm and a wingspan of 74 to 120cm. Males weigh 330 to 1,000g and the noticeably larger females 700 to 1,500g. In one study the falcons were observed only near large natural cliffs, at a mean altitude of 698m, and in the wild they can live up to nearly 20 years (Wikipedia, general species account).
The only source read for the Bhutan guide gives these measurements and the cliff association. No plumage, range or diet information was found, so none is stated, and its occurrence in Bhutan is flagged for checking.