Tree Swallow Nestling
Tachycineta bicolor (nestling)

A helpless, altricial chick raised in a tree cavity or nest box, often near open fields, marshes, or ponds. It has sparse down at first and spends most of its time crouched in the nest, gaping and calling when a parent arrives. Its diet is almost entirely insects and other small arthropods delivered by the adults. One notable nestling trait is the production of fecal sacs, which parents remove to help keep the cavity clean.
- Type
- Cry
- Conservation status
- LC
Growth chain
- Tree Swallow Nestling
- Tree Swallow