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ZEISS DTI thermal imaging cameras. For more discoveries at night, and during the day.

Terns, terns and more terns from Vic, Australia. (1 Viewer)

Tiraya

Tiraya

San Diego CA
United Kingdom
I've had these images for a long time now since the time I found the Arctic, and have still not been able to identify them. I have had several mixed views on the topic, and would really like a definite answer on them. The argument comes down between White-fronted and Common.
The first 3 images are Tern A, the next 2 are Tern B.

Tern B might be the same bird as Tern A but I am not sure. After that, with the images on the second post, the terns were flying off, coming in and moving around all over the place so I can't be sure of which ones were the same.

Tern A and B are from the same day, and C+ are from the week after.

Thanks in advance.
 

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Last edited:
Here are Terns CD and E and F.
 

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Due to the lack of dark edging to the primaries on the under wing - I think White-Fronted is the most likely. The edging is very minimal on the 1st & 4th pictures, and I believe Common would show a broader edging in all ages.
 
yorkshire83 said:
Due to the lack of dark edging to the primaries on the under wing
Click to expand...

The last 2 birds in the second post had dark edging, if this changes anything (though they all show the white edge on the primaries as JanJ says above). See attachment. Should have added that one in the first post.
 

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I think we can safely assume that they are not Common Terns, meaning the ones in pic. 1-5 & pic 2-4 in post 2 but White-fronted on the features that has been suggested here.

JanJ
 
Thanks all.

Its bad news because I have to take Common off my Australia list, but good because White-fronted is a lifer.
 
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