A yellow warbler consumerproducer or decomposer?

berries in the winter, insects like meal worms in the summer

Family Parulidae, genus Dendroica. Dendroica Petechia.

The yellow warbler is not endangered.

The yellow rumped warbler breeds in the Northern U.S. and Canada, and winters in the Southern U.S. and Mexico.

Warblers are normally insect eaters, and some small fruits. Will eat suet at feeders, even peanut butter spread on tree bark.