Heermann's Gull heermannii(last update:
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Coordinators: 1cy June 2cy Jan 3cy Jan adult Jan |
Heermann's Gull heermannii 2nd cycle (2CY), November 24 2018, Grover Beach, California USA. Picture: Alex Abela.See Alex's Flickr site for many more images, illustrating the plumage development in this species! Overall brown aspect to plumage, except for those wing-coverts and upper tertials that were included in a late-summer partial autumn moult and appear greyish (inner GC, MC row). |