Brazil Kiskadee question (1 Viewer)

Oscar0906 · Nov 17, 2019

Hi all,

I am still having trouble differentiating these species (Photos taken in Paraguay and Brazil);

- For 1 I am thinking Great Kiskadee; bill looks to slim for boat-billed flycatcher
- For 2 and 3 I am thinking lesser kiskadee, due to the yellow cap (bill looks wrong for rusty-margined flycather)
- 4 and 5: lesser Kiskadee?

Thanks!

Oscar

THE_FERN · Nov 17, 2019

I think that 1-3 have greater kiskadee, with 2 also having a likely social flycatcher (lower right). 4 and 5 are lesser kiskadee with a clearly straighter, finer bill. The "social flycatcher" appears to have a largely yellow crown patch, but zooming in suggests there's orange in there too. Alternatively, this could be a rusty-margined flycatcher depending on where precisely the photo was taken. Difficult to be sure, but face looks to be fairly black and there's a hint of rufous in the wing, + yellow crown fits better with this species. Either way, not lesser kiskadee I suggest.

njlarsen · Nov 18, 2019

I have also tried zooming in on the "social flycatcher". It looks yellow with maybe some orange on the crown; the book I have states orange-red for Social in contrast to orange-yellow for Rusty-margined.

Niels

THE_FERN · Nov 18, 2019

njlarsen said:
I have also tried zooming in on the "social flycatcher". It looks yellow with maybe some orange on the crown; the book I have states orange-red for Social in contrast to orange-yellow for Rusty-margined.

Niels

Yes: ebird map suggests Rusty-margined can be as far south as the concepcion/amambay border with Brazil. So location is important. Also, not convinced there's enough in the image to be certain given how similar those 2 are.

Oscar0906 · Nov 18, 2019

njlarsen said:
I have also tried zooming in on the "social flycatcher". It looks yellow with maybe some orange on the crown; the book I have states orange-red for Social in contrast to orange-yellow for Rusty-margined.

Niels

Maybe these pictures could help: I do believe this is the same bird. Looks more orange and yellow crown-patch to me, although the shape of the bill fits better with greater kiskadee

THE_FERN · Nov 19, 2019

Oscar0906 said:
Maybe these pictures could help: I do believe this is the same bird. Looks more orange and yellow crown-patch to me, although the shape of the bill fits better with greater kiskadee

These are all great kiskadee. They don't (to me) look like the lower right hand bird we were discussing but that wasn't a good angle so who knows? Anyway, the original question was about which are lesser. The answer is last 2 of first set. Just out of interest, where in Paraguay were you?

Oscar0906 · Nov 19, 2019

THE_FERN said:
These are all great kiskadee. They don't (to me) look like the lower right hand bird we were discussing but that wasn't a good angle so who knows? Anyway, the original question was about which are lesser. The answer is last 2 of first set. Just out of interest, where in Paraguay were you?

These were taken in the Chaco, in a town calles Puerto Casado.

Thanks for the help!

pbjosh · Nov 21, 2019

First three photos are all Great Kiskadees for me. I'm not sure how people are seeing Social / Rusty-margined there. The white head stripes meeting behind on the nape, and the size favor another Great Kiskadee to me. As an aside, if it were Rusty-margined I think the photo is good enough we'd see the coloration on the wing.

Granted eBird coverage (and ornithological knowledge) are really lacking in Paraguay compared to all surrounding countries, but I get the impression that Lesser Kiskadee is quite uncommon there. However, despite the photo quality, I agree that photo 4/5 looks like a Lesser. It looks like it is perched low, which is good for Lesser, but was it near water? They tend to stay very close to water and I've never seen one perch high.

njlarsen · Nov 21, 2019

The lower right hand bird in the second photo looks a bit smaller than the lefthand bird in that image to me. It also looks to have a short bill, but angle is difficult.

Niels

THE_FERN · Nov 22, 2019

njlarsen said:
The lower right hand bird in the second photo looks a bit smaller than the lefthand bird in that image to me. It also looks to have a short bill, but angle is difficult.

Niels

Yep my impression too. But let's not get hung up on it: question was about which is lesser and on that we all agree. If there's such a thing as social/rusty-margined in 2nd photo then I think social

Brazil Kiskadee question (1 Viewer)

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