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Male & Female Difference Peregrine Falcon (1 Viewer)

RMD

Richard
Besides the size difference, is there any way of positively IDing the difference between the male and female Peregrine?

As the male is called a Tiercel, does the female also have a name?

Richard
 
I think Tiercel is only a falconers' term rather than a birdwatchers name and the female is called a falcon by falconers (about like duck/drake and goose/gander, I suppose!)
 
Forsman says (The Raptors of Europe and the Middle East), that "males appear bigger-headed in relation to body size and also comparatively narrower-winged than females." In addition to, "adult males tend to be paler grey above and finer barred below than females of same age." (page 560)

Hannu
 
Female Peregrines do tend to be more strongly marked below, but in the end its the body bulk I mostly use to sex them. I'm in the fortunate position of seeing birds almost every day.
 
Thanks everyone.

Jane, are you saying that you see Peregrines everyday or just birds in general?

Richard

Jane Turner said:
Female Peregrines do tend to be more strongly marked below, but in the end its the body bulk I mostly use to sex them. I'm in the fortunate position of seeing birds almost every day.
 
RMD said:
Thanks everyone.

Jane, are you saying that you see Peregrines everyday or just birds in general?

Richard

I see Peregrines every day... I look out over the Dee estuary and as such am on the border of the feeding territory of two pairs, the one that nest in Birkenhead and a pair from the cliffs of North Wales.

Female
http://www.birdforum.net/attachment.php?attachmentid=5871

Male in foreground, juv female at rear, probably with Saker genes!
http://www.birdforum.net/attachment.php?attachmentid=6870

I've seen 5 in the air twice :)
 
Last edited:
Do you have a spare room in your house?

What I wouldn't give to be in your location! :-]

Richard

Jane Turner said:
I see Peregrines every day... I look out over the Dee estuary and as such am on the border of the feeding territory of two pairs, the one that nest in Birkenhead and a pair from the cliffs of North Wales.

Female
http://www.birdforum.net/attachment.php?attachmentid=5871

Male in foreground, juv female at rear, probably with Saker genes!
http://www.birdforum.net/attachment.php?attachmentid=6870

I've seen 5 in the air twice :)
 
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