Please start a 'new post' for each other individual bird, to keep discussions separated.
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Here is an example of dark 4cy-herring gull potographed by Alex Máni in SW-Iceland, 7.1.2017. It has much black in the tail and the secondaries.
- Herring2_7.1.17.jpg (121.85 KiB) Viewed 525 times
- Herring_7.1.17b.jpg (116.8 KiB) Viewed 525 times