Adults are brown on the upperparts with light spotting, resembling a piece of tree bark, with white underparts. They have a long thin bill with a slight downward curve and a long stiff tail used for support as the bird creeps upwards. The male creeper has a slightly larger bill than the female. The Brown creeper is 11.7 to 13.5 cm (4.6 to 5.3 in) long.


Habitat and Distribution

The breeding habitat of the Brown Creeper is mature forests, especially conifers, in Canada, Alaska and the northeastern and western United States. They are permanent residents through much of their range; many northern birds migrate farther south to the United States.


Feeding

They forage on tree trunks , branches. The birds creep slowly with their body flattened against the bark, probing with their beak for insects. They mainly eats small arthropods found in the bark. In winter they eat seeds.


Breeding

Brown Creepers breed from April. The female will make a partial cup nest either under a piece of bark partially detached from the tree, or in a tree cavity. It will lay 3 to 7 eggs, and incubation lasts approximately two weeks. Both of the parents help feed the chicks.


Calls and Songs

The calls are single very high pitched, short, often insistent, and piercing ; see, or swee. The song often has a cadence like; pee pee willow wee or see tidle swee, with notes similar to the calls.