[nysbirds-l] AOS Checklist Supplement: Greenland returns to North America
The lumping of Thayer's Gull and retention of 'Willet', 'Yellow-rumped Warbler' and Hoary Redpoll were briefly discussed earlier on this forum but this predated the actual publication of the annual AOS Checklist supplement, which is now available.
[nysbirds-l] AOS Checklist Supplement: Greenland returns to North America
The lumping of Thayer's Gull and retention of 'Willet', 'Yellow-rumped Warbler' and Hoary Redpoll were briefly discussed earlier on this forum but this predated the actual publication of the annual AOS Checklist supplement, which is now available.