Gyr falcon

Description

The gyrfalcon is a very large falcon,being about the same size as the largest buteos (buzzards) but probably are slightly heavier.Males are 48 to 61 cm (19 to 24 in) long,weigh 805 to 1,350 g (1.775 to 2.976 lb),with average weights reported as 1,130 or 1,170 g (2.49 or 2.58 lb) and have a wingspan from 110 to 130 cm (43 to 51 in).Females are bulkier and larger,at 51 to 65 cm (20 to 26 in) long,124 to 160 cm (49 to 63 in) wingspan,and of 1,180 to 2,100 g (2.60 to 4.63 lb) weight,with average weights of 1,585 or 1,752 g (3.494 or 3.862 lb).An outsized female from eastern Siberia was found to have scaled 2,600 g (5.7 lb).Among standard measurements,the wing chord is 34.5 to 41 cm (13.6 to 16.1 in),the tail is 19.5 to 29 cm (7.7 to 11.4 in),the culmen is 2 to 2.8 cm (0.79 to 1.10 in) and the tarsus is 4.9 to 7.5 cm (1.9 to 3.0 in).The gyrfalcon is larger,broader-winged and longer-tailed than the peregrine falcon,which it is known to hunt.It differs from the buzzard in general structure,having pointed wings.