subis (A) Barn swallow, Hirundo rustica Cliff swallow, Petrochelidon pyrrhonota Leaf warblers Order: PasseriformesFamily: Phylloscopidae Leaf warblers are a family of small insectivorous birds found mostly in Eurasia and ranging into Wallacea and Africa. The Arctic warbler breeds east into Alaska. The species are of various sizes, often green-plumaged above and yellow below, or more subdued with greyish-green to greyish-brown colours. Arctic warbler, Phylloscopus borealis (A) Kinglets Order: PasseriformesFamily: Regulidae The kinglets are a small family of birds which resemble the titmice. They are very small insectivorous birds. The adults have coloured crowns, giving rise to their name. Ruby-crowned kinglet, Corthylio calendula Golden-crowned kinglet, Regulus satrapa Waxwings Order: PasseriformesFamily: Bombycillidae The waxwings are a group of passerine birds with soft silky plumage and unique red tips to some of the wing feathers. In the Bohemian and cedar waxwings, these tips look like sealing wax and give the group its name. These are arboreal birds of northern forests. They live on insects in summer and berries in winter. Bohemian waxwing, Bombycilla garrulus Cedar waxwing, Bombycilla cedrorum Nuthatches Order: PasseriformesFamily: Sittidae Nuthatches are small woodland birds. They have the unusual ability to climb down trees head first, unlike other birds which can only go upwards. Nuthatches have big heads, short tails and powerful bills and feet. Red-breasted nuthatch, Sitta canadensis Treecreepers Order: PasseriformesFamily: Certhiidae Treecreepers are small woodland birds, brown above and white below. They have thin pointed down-curved bills, which they use to extricate insects from bark. They have stiff tail feathers, like woodpeckers, which they use to support themselves on vertical trees. Brown creeper, Certhia americana (C) Wrens Order: PasseriformesFamily: Troglodytidae Wrens are small and inconspicuous birds, except for their loud songs. They have short wings and thin down-turned bills. Several species often hold their tails upright. All are insectivorous. House wren, Troglodytes aedon (A) Pacific wren, Troglodytes pacificus (C) Winter wren, Troglodytes hiemalis (C) Marsh wren, Cistothorus palustris (C) Mockingbirds and thrashers Order: PasseriformesFamily: Mimidae The mimids are a family of passerine birds which includes thrashers, mockingbirds, tremblers, and the New World catbirds. These birds are notable for their vocalization, especially their remarkable ability to mimic a wide variety of birds and other sounds heard outdoors. The species tend towards dull greys and browns in their appearance. Grey catbird, Dumetella carolinensis (A) Brown thrasher, Toxostoma rufum (A) Northern mockingbird, Mimus polyglottos (C) Starlings Order: PasseriformesFamily: Sturnidae Starlings and mynas