Heermann's Gull heermannii(last update:
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Coordinators: 1cy June 2cy Jan 3cy Jan adult Jan |
Heermann's Gull heermannii 1st cycle (1CY), October 06 2018, San Luis Obispo, California USA. Picture: Alex Abela.See Alex's Flickr site for many more images, illustrating the plumage development in this species! 1st gen flight feathers, scaps replaced. |