
Photo: Дмитрий Еременко · CC BY 4.0 (May be cropped or resized)
Hieraaetus pennatus
Size
About 40cm
Wingspan
110–132cm
Weight
Males about 510–770g; females about 840–1,025g
The booted eagle is a small eagle about 40cm long with a wingspan of 110 to 132cm. Males weigh about 510 to 770g and females about 840 to 1,025g (Wikipedia, general species account).
The only source read for the Bhutan guide gives these measurements, plus a note on a population breeding in South Africa, which is not relevant here. No plumage, range, habitat or diet information for the Himalaya was found, so none is stated.