plumbeus (A) Philadelphia vireo, Vireo philadelphicus Warbling vireo, Vireo gilvus Red-eyed vireo, Vireo olivaceus Yellow-green vireo, Vireo flavoviridis (A) Shrikes Order: PasseriformesFamily: Laniidae Shrikes are passerine birds known for their habit of catching other birds and small animals and impaling the uneaten portions of their bodies on thorns. A shrike's beak is hooked, like that of a typical bird of prey. Brown shrike, Lanius cristatus (A) Red-backed shrike, Lanius collurio (A) Loggerhead shrike, Lanius ludovicianus Northern shrike, Lanius borealis Crows, jays, and magpies Order: PasseriformesFamily: Corvidae The family Corvidae includes crows, ravens, jays, choughs, magpies, treepies, nutcrackers, and ground jays. Corvids are above average in size among the Passeriformes, and some of the larger species show high levels of intelligence. Canada jay, Perisoreus canadensis Pinyon jay, Gymnorhinus cyanocephalus (A) Steller's jay, Cyanocitta stelleri Blue jay, Cyanocitta cristata California scrub-jay, Aphelocoma californica (A) (Not yet assessed by the IUCN) Woodhouse's scrub-jay, Aphelocoma woodhouseii (A) (Not yet assessed by the IUCN) Clark's nutcracker, Nucifraga columbiana Black-billed magpie, Pica hudsonia Eurasian jackdaw, Corvus monedula (A) American crow, Corvus brachyrhynchos Fish crow, Corvus ossifragus (A) Chihuahuan raven, Corvus cryptoleucus (A) Common raven, Corvus corax Tits, chickadees, and titmice Order: PasseriformesFamily: Paridae The Paridae are mainly small stocky woodland species with short stout bills. Some have crests. They are adaptable birds, with a mixed diet including seeds and insects. Carolina chickadee, Poecile carolinensis Black-capped chickadee, Poecile atricapillus Mountain chickadee, Poecile gambeli Chestnut-backed chickadee, Poecile rufescens Boreal chickadee, Poecile hudsonicus Grey-headed chickadee, Poecile cinctus Tufted titmouse, Baeolophus bicolor Larks Order: PasseriformesFamily: Alaudidae Larks are small terrestrial birds with often extravagant songs and display flights. Most larks are fairly dull in appearance. They feed on insects and seeds. Eurasian skylark, Alauda arvensis Horned lark, Eremophila alpestris Swallows Order: PasseriformesFamily: Hirundinidae The family Hirundinidae is adapted to aerial feeding. They have a slender streamlined body, long pointed wings, and a short bill with a wide gape. The feet are adapted to perching rather than walking, and the front toes are partially joined at the base. Bank swallow, Riparia riparia Tree swallow, Tachycineta bicolor Violet-green swallow, Tachycineta thalassina Northern rough-winged swallow, Stelgidopteryx serripennis Purple martin, Progne subis Barn swallow, Hirundo rustica Cliff swallow, Petrochelidon pyrrhonota Cave swallow, Petrochelidon fulva Long-tailed tits Order: PasseriformesFamily: Aegithalidae The long-tailed tits are a family of small passerine birds. Their plumage is typically dull grey or brown in colour. There is only one North