Pied Harrier vs Spotted Harrier

Pied Harrier

Circus melanoleucos

Large336 gGrassland

The pied harrier is a medium-sized raptor. They measure 41-49cm (16 – 19 in) from the end of the tail to tip of the beak. Adult males weigh 265–325g, while adult females weigh 390–455g. They perch on reeds, posts, or on the ground, rarely on trees. Their wings reach far down their tail but not past the tip. The male is black on the head, neck, back, breast, and primary flight feathers, and white on the forewing, rump, and the rest of its underparts. It has striking yellow eyes. The female is similar looking to that of Montagu's harrier. Voice: The male gives repeated "kiiy yeee" calls and the females gives a rapid "kee-kee-kee" when displaying. If alarmed or disturbed near the nest the female may give a rapid chattering "chak-chak-chak-chak". They are otherwise generally silent, apart from an occasional anxious "wek wek wek".

ID text from Wikipedia, CC BY-SA 4.0

Photo: Wich'yanan L · CC BY 4.0

Spotted Harrier

Circus assimilis

Large559 gGrassland

The spotted harrier is a medium-sized, slender bird of prey with adult females reaching 58–61 cm. Both adults and juvenile birds have an owl-like facial ruff that creates the appearance of a short, broad head as well as long yellow legs. The spotted harrier's wings feature prominent black tips and the tail is prominently barred and slightly wedge shaped. Adult males are much smaller than the females only growing to 50–55 cm. Adult birds have blue to grey upper parts with a chestnut face and underparts that feature numerous white spots.

ID text from Wikipedia, CC BY-SA 4.0

Photo: finch_fanatic · CC0

Photos and recordings are credited to their authors under the licence shown. Full profiles: Pied Harrier and Spotted Harrier.