Northern harrier

Description

The northern harrier is 41–52 cm (16–20 in) long with a 97–122 cm (38–48 in) wingspan.It resembles other harriers in having distinct male and female plumages.The sexes also differ in weight,with males weighing 290 to 400 g (10 to 14 oz),with an average of 350 g (12 oz),and females weighing 390 to 750 g (14 to 26 oz),with an average of 530 g (19 oz).Among standard measurements,the wing chord is 32.8 to 40.6 cm (12.9 to 16.0 in),the tail is 19.3 to 25.8 cm (7.6 to 10.2 in) and the tarsus is 7.1 to 8.9 cm (2.8 to 3.5 in).It is relatively long winged and long tailed,having the longest wing and tail relative to its body size of any raptor occurring in North America.