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Species Variation


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2 minutes ago, Kevin said:

Can we also post male vs female? 

There is a thread for that: https://forums.whatbird.com/index.php?/topic/2808-sexual-dimorphism-in-birds/

 

1 hour ago, MichaelLong said:

Differing lightness on eared grebes 

There is also this thread to show how photos can be misleading: https://forums.whatbird.com/index.php?/topic/10605-examples-of-bird-photos-that-can-be-misleading/

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2 minutes ago, Melierax said:

I remember that! What was the consensus? I think I may have said Harlan's but I don't remember. Now that I look at it, seems like melanism is a possibility.

I don't think there was a real determination on what it was.  I asked a FB raptor group also and that was split!

 

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  • 7 months later...
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Purple Finch with heavy and light streaks, also to contrast some with the heavier streaked ones posted above.  

12001200

Snow Goose

1200

1200

White neck rings on some Canada Geese

1200

 

Dark and light Black-vented Shearwater

2400

1200

 

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