Last few days Brent Goose numbers have been growing fast in Iceland. This morning Svenja Auhage found 600 foraging in Blautós, near Akranes. In the afternoon I counted 1630 at Alftanes w.o. 1100 were at Skógtjörn. I did not have much time, but managed to read nearly 50 rings at high water. Despite having read about 50 before most of today's birds were new. The new arrivals are generally in good condition and many with API of 3 and some even score 4.