Variegated bristle-tyrant on opus (1 Viewer)

Larry Sweetland

Formerly 'Larry Wheatland'

• Oct 18, 2017

• #1

As someone who's struggling at mo with tyrannid I'd, can someone confirm or otherwise that dark lower mandible excludes Variegated Bristle-tyrant (and therefore one of the 2 pics in opus)?

 

T

THE_FERN

Well-known member

Opus Editor

• Oct 18, 2017

• #2

Birds of northern South America doesn't mention bill, although the illustration clearly shows an orangy mandible, dark maxilla. Birds of peru says has orangy mandible and is most similar to Slaty-capped fly which has an all-black bill. This is shown in the illustration. Lower opus bird looks ok (corresponds to hbw pics), upper with more broken wing bars and "fiercer" expression is probably Slaty - capped. Note bi-colored bill not always apparent in pics, but doesn't appear black if not

 

delia todd

If I said the wrong thing it was a Senior Moment

Staff member

Opus Editor

Supporter

• Oct 18, 2017

• #3

Thanks for starting this discussion Larry.

I've written to both photographers asking if they want to join in here.

 

Motmot

Eduardo Amengual

• Oct 18, 2017

• #4

Agree upper bird in opus page is a Slaty-capped Flycatcher.

 

Stanley Jones

Registered User

Supporter

• Oct 19, 2017

• #5

Thanks to all for catching this mis-identification. For me personally, it is great to have properly identified pictures but more importantly it is paramount that the pictures representing a species in OPUS in properly identified. Thanks to all that has been involved in this process. I will update my post to Slaty-capped Flycatcher. I will contact Delia to have here remove it from OPUS. Thanks again for everyones expertise and time!

 

Pitter

Well-known member

• Feb 21, 2018

• #6

Hilty's Birds Of Colombia includes orange lower mandible and wide cinnamon (not yellow) wing bars as key identification features of Variegated Bristle-tyrant