Black-tailed Gull – Bird Ecology Study Group

29 Nov 2021

Black-tailed Gull – younger birds

by BESG | posted in: Morphology-Develop. | 0

“Black-tailed Gulls (Larus crassirostris) were the commonest gull we observed at East Hokkaido and we saw some young birds that had not attainted full adult plumage. Comments I wrote yesterday apply to today’s posting …LINK. Appreciate any suggestions or ID … Continued

10 Aug 2019

Black-tailed Gull – feeding behaviour

by BESG | posted in: Feeding-vertebrates, Videography | 0

“Black-tailed Gulls (Larus crassirostris) were common at the Nemuro Peninsula and we have a number of opportunities to watch them. “I saw a pair feeding for an extended period in a less common manner. They would float on the shallow … Continued