I happened upon a pair of White-eyed Vireos today that were working diligently on their nest. It would be fascinating to know how long it took them to get this far. (All About Birds says it takes 3-5 days to complete.)
They brought all sorts of little bits and took turns working them down into the bowl of the nest.
One of them got right down in there, presumably smoothing out the interior.
A lot of the pieces looked like shredded leaf or lichen.
They were flying into the woods and on most trips landed in this nearby tree…
before zipping to the nest.
March 21, 2023
I saw a White-eyed Vireo nest one other time, in June 2020. You can see that post at White-eyed Vireo on Nest