Spotted in Downers Grove, IL - Small greenish yellow body with black cap
by Robert Hamnik
(Bolingbrook, ILm USA)
Saw this little one flitting around the train station parking lot - not really flying but getting around. Was eating like crazy (saw it catch a fly) and let me catch it twice (jumped down but didn't move away. Small pointed beak not really visible in this pick. It really is greenish yellow not just yellow. Very small too. Any ideas?
Looks like a Wilson's Warbler.