borealforest.org
Description
Distinguishing Features – Back and head, shiny steel blue with greenish reflections. under parts and throat, white. Bill, black. Tail, forked. Female slightly smaller and somewhat duller in colouration.
Size – 12.5 – 15.7 cm (5 – 6.25 in).
Habitat
Around waterways, marshes and beaver ponds.
Nesting
In a tree cavity or old woodpecker hole; crevice in a building or a bird house. Nest is made up of grasses, lined with feathers and down. Eggs, 4 – 6; white. Incubation period 13 – 16 days.
Notes
The Tree Swallow lives primarily on a diet of insects. This agile flier is often observed flying swiftly over water catching flying insects.