White-winged Black Tern, Oxidation Ponds, ChCh

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GrahameNZ
Posts: 312
Joined: Thu Dec 10, 2009 4:43 pm
Location: The Wetlands, Christchurch
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White-winged Black Tern, Oxidation Ponds, ChCh

Postby GrahameNZ » Fri Aug 03, 2018 4:03 pm

Hi folks,
We currently have a WWBT on the central western oxidation pond.
On Tues I saw a group of 6 or 7 terns on the pond, I figured most were Black-fronted but one or two looked a bit different.
No bins or camera made getting an id of anything impossible.
Got back earlier this afty and only one tern to be found.
The cap extends down the neck.
The image is a montage of the 2 best images.
Heavy crops, long way away bird.

White-Winged-Black-Tern-Oxidation-Ponds-Chch--20180803.jpg
White-Winged-Black-Tern-Oxidation-Ponds-Chch--20180803.jpg (100.07 KiB) Viewed 322 times
andrewcrossland
Posts: 1061
Joined: Mon Dec 14, 2009 2:29 pm
Location: Christchurch

Re: White-winged Black Tern, Oxidation Ponds, ChCh

Postby andrewcrossland » Fri Aug 03, 2018 9:08 pm

I think it's the same bird that's been around do since late summer. I've seen it occasionally over autumn and most recently on July 29th. Cheers
Davidthomas
Posts: 863
Joined: Tue Oct 18, 2011 10:05 am

Re: White-winged Black Tern, Oxidation Ponds, ChCh

Postby Davidthomas » Sat Aug 04, 2018 2:44 pm

Bird was still present this afternoon at 2-2:30 on the western ponds. Hawking constantly along with a few non breeding and juvenile black fronted terns for a nice comparison.

Appeared to be a non breeding adult to my eyes. Or certainly a second winter bird. As it didn’t exhibit the full juvenile plumage characteristics. Surprised by how small it looks compared to the black fronts, with a much less robust body and shorter wings and smaller head

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