Ground-Tyrants are not easyto identify. This is a Spot-billed
Ground-Tyrant. At the picture
you can see the yellow spot at
the base of lower mandible.
The best way (and only reliable?)
to seperate this species from
Cinereous Ground-Tyrant is to observe this spot.
Spot-billed Groud-Tyrant
from behind. All pictures
from Chiguata 31.08.07.
Last picture: Here you can also see the short white supraloral. The yellow spot at lower mandible is dificult to see at this picture.
1 comment:
Hej Tor-Egil
Rufous margins on flight feather and coverts is actually a good mark as well. Also Cinereous is much paler gray on the back.
Gunnar
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