The tumors could be a result of any number of causes. One possibility
is parasites. Gunnar Hoy and I collected a warbler in Salta, northern
Argentina, in the 1960's that had a large tumor (which is why it was
collected) on it's throat; similar to those in your photos. A
necropsy revealed a
All three Hudsonian Godwits were present at the Field 7 pools this afternoon
(Friday ca. 2:00 pm), along with two American Golden-Plovers and a Long-billed
Dowitcher.
The godwit with the injured right leg is an adult, and it also has gruesome
injuries on its right wing. The other two are juvs,