Last time I saw one a few days ago it was almost fully molted. Saw my first rose breasted grosbeak yesterday morning. She put he hummingbird feeder up last week. I thought too early, but heard the weatherman mention they had been sighted in CT in recent days. The downys quickly took it over once the suet was gone. Watched these cowbirds yesterday. 2-3 males vying for the females attention. Cowbirds exhibit parasitic behavior. Females lay eggs in other birds nests.