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*Male: Grey upperparts, head (paler around eye), and upper breast, rest of undersides mainly whitish with reddish elongated spots; white upper-tail coverts, upper tail grey, under-tail with three faint bars. Primaries are black , and there is one black wingbar above and two on underwing. | *Male: Grey upperparts, head (paler around eye), and upper breast, rest of undersides mainly whitish with reddish elongated spots; white upper-tail coverts, upper tail grey, under-tail with three faint bars. Primaries are black , and there is one black wingbar above and two on underwing. | ||
*Female: mainly greyish brown, strongly streaked on underside, much white around eye | *Female: mainly greyish brown, strongly streaked on underside, much white around eye | ||
| − | *Juvenile: dark wings and mantle, warm reddish brown undersides with strong facial markings (much white) but weak white collar around upper neck | + | *Juvenile: dark wings and mantle, warm reddish brown undersides with strong facial markings (much white) but weak white collar around upper neck<br /> |
| + | '''In flight''': shows four noticable free primaries | ||
====Similar species==== | ====Similar species==== | ||
A [http://www.birdforum.net/showthread.php?t=66359 lengthy thread] which discusses separation from [[Hen Harrier]]. <br />See also [[Pallid Harrier]] | A [http://www.birdforum.net/showthread.php?t=66359 lengthy thread] which discusses separation from [[Hen Harrier]]. <br />See also [[Pallid Harrier]] | ||
Revision as of 14:19, 27 January 2010
- Circus pygargus
Identification
- Male: Grey upperparts, head (paler around eye), and upper breast, rest of undersides mainly whitish with reddish elongated spots; white upper-tail coverts, upper tail grey, under-tail with three faint bars. Primaries are black , and there is one black wingbar above and two on underwing.
- Female: mainly greyish brown, strongly streaked on underside, much white around eye
- Juvenile: dark wings and mantle, warm reddish brown undersides with strong facial markings (much white) but weak white collar around upper neck
In flight: shows four noticable free primaries
Similar species
A lengthy thread which discusses separation from Hen Harrier.
See also Pallid Harrier
Distribution
Breeding in Eurasia, wintering to India, Middle East and Africa.
Taxonomy
This is a monotypic species
Habitat
Marshes, reedbeds and cultivated land, especially cornfields, also moorland and heathland and rough grassland.
Behaviour
Usually fly with wings held in a high V; if gliding there is often a bend at the wing near the body, so that the inner part is more vertical. Mostly fly low when hunting, can be seen high above when migrating.
Food consists of small mostly vertebrate animals.
Bird Song
<flashmp3>Circus pygargus (song).mp3</flashmp3>
Listen in an external program
References
- Clements, James F. 2007. The Clements Checklist of Birds of the World. 6th ed., with updates to October 2007. Ithaca: Cornell University Press. ISBN 9780801445019
Recommended Citation
- BirdForum Opus contributors. (2024) Montagu's Harrier. In: BirdForum, the forum for wild birds and birding. Retrieved 25 April 2024 from https://www.birdforum.net/opus/Montagu%27s_Harrier
