The red-breasted flycatcher spends the majority of its time off the ground in trees, and feeds primarily on insects, only occasionally feeding on fruit. The insects on which it feeds are either captured during flight or picked off foliage (6).
During the breeding season, red-breasted flycatchers are both territorial and monogamous. The female is largely responsible for constructing the nest, a fairly standard ‘open cup’ nest made from mosses, grasses and leaves and lined with finer materials, usually assembled around three to ten feet off the ground (7), usually in hole in a tree or wall, but occasionally in a shrub (2).
The red-breasted flycatcher usually lays a clutch of between four and seven eggs each season. The eggs are whitish or blue-green and very finely covered with reddish-brown speckles, although these makings can be faint and poorly defined. For a period of 12 to 15 days the female incubates the eggs alone, whilst being fed by the male, after which all the eggs hatch simultaneously (8). The offspring hatch with very little, if any, down and fledge after around 11 to 15 days (2), with both parents feeding the young during this period. The red-breasted flycatcher will usually have just one brood a year, and from season to season will return to the same nesting site (2) (7). Red-breasted flycatchers first breed at around one year old (7).