||Deep cup nest incubator
||Shrub, tree fork, horizontal branch;
or any structure offering adequate support (e.g., a ledge above
your front door)
||Cities, towns, farmlands, shaded
and open woods.
||Mr. and Mrs. Turdus migratorius (AMERICAN
||Mrs. American Robin (Mr. Robin may
help provide material, but his main duties are to feed the mother
and stand guard while she is working).
|MATERIALS OF CONSTRUCTION
|| Untidy foundation of twigs
and grass; cup part uses wet mud interlaced with grass and weed
stalks and any other long flexible materials that are onsite
and available (as approved by the architect, Mrs. Robin)
||Body heat from brood spot on the
underside of female's body (patch of skin plucked bare that covers
a rich supply of bloodvessels, which supplies heat to the eggs).
|INSULATION (may also conceal eggs
from predators, shed water, deter pests, and cushion)
|| Dried grasses
|ESTIMATED ENERGY INPUT FOR NEW CONSTRUCTION
||The equivalent of 1/3 of an apple
per robin per day. Main foods are invertebrates and fruit. It
takes about 5 to 7 days to build a nest.
||Spring (weather dependent)
|FREQUENCY OF USE
||2, sometimes 3 broods per season