of tapping noisily on tree trunks with their beaks. Lewis's woodpecker, Melanerpes lewis Red-headed woodpecker, Melanerpes erythrocephalus Acorn woodpecker, Melanerpes formicivorus (A) Red-bellied woodpecker, Melanerpes carolinus Williamson's sapsucker, Sphyrapicus thyroideus Yellow-bellied sapsucker, Sphyrapicus varius Red-naped sapsucker, Sphyrapicus nuchalis Red-breasted sapsucker, Sphyrapicus ruber American three-toed woodpecker, Picoides dorsalis Black-backed woodpecker, Picoides arcticus Downy woodpecker, Dryobates pubescens Hairy woodpecker, Dryobates villosus White-headed woodpecker, Dryobates albolarvatus Northern flicker, Colaptes auratus Pileated woodpecker, Dryocopus pileatus Falcons and caracaras Order: FalconiformesFamily: Falconidae Falconidae is a family of diurnal birds of prey, notably the falcons and caracaras. They differ from hawks, eagles, and kites in that they kill with their beaks instead of their talons. Crested caracara, Caracara plancus (A) Eurasian kestrel, Falco tinnunculus (A) American kestrel, Falco sparverius Merlin, Falco columbarius Gyrfalcon, Falco rusticolus Peregrine falcon, Falco peregrinus Prairie falcon, Falco mexicanus Tyrant flycatchers Order: PasseriformesFamily: Tyrannidae Tyrant flycatchers are Passerine birds which occur throughout North and South America. They superficially resemble the Old World flycatchers, but are more robust and have stronger bills. They do not have the sophisticated vocal capabilities of the songbirds. Most, but not all, are rather plain. As the name implies, most are insectivorous. Small-billed elaenia, Elaenia parvirostris (A) Ash-throated flycatcher, Myiarchus cinerascens (A) Great crested flycatcher, Myiarchus crinitus Great kiskadee, Pitangus sulphuratus (A) Sulphur-bellied flycatcher, Myiodynastes luteiventris (A) Variegated flycatcher, Empidonomus varius (A) Tropical kingbird, Tyrannus melancholicus (A) Cassin's kingbird, Tyrannus vociferans (A) Thick-billed kingbird, Tyrannus crassirostris (A) Western kingbird, Tyrannus verticalis Eastern kingbird, Tyrannus tyrannus Grey kingbird, Tyrannus dominicensis (A) Scissor-tailed flycatcher, Tyrannus forficatus (A) Fork-tailed flycatcher, Tyrannus savana (A) Olive-sided flycatcher, Contopus cooperi Western wood-pewee, Contopus sordidulus Eastern wood-pewee, Contopus virens Yellow-bellied flycatcher, Empidonax flaviventris Acadian flycatcher, Empidonax virescens Alder flycatcher, Empidonax alnorum Willow flycatcher, Empidonax traillii Least flycatcher, Empidonax minimus Hammond's flycatcher, Empidonax hammondii Grey flycatcher, Empidonax wrightii (A) Dusky flycatcher, Empidonax oberholseri Pacific-slope flycatcher, Empidonax difficilis Cordilleran flycatcher, Empidonax occidentalis (A) Black phoebe, Sayornis nigricans (A) Eastern phoebe, Sayornis phoebe Say's phoebe, Sayornis saya Vermilion flycatcher, Pyrocephalus rubinus (A) Vireos, shrike-babblers, and erpornis Order: PasseriformesFamily: Vireonidae The vireos are a group of small to medium-sized passerine birds. They are typically greenish in colour and resemble wood warblers, apart from their heavier bills. Black-capped vireo, Vireo atricapilla (A) White-eyed vireo, Vireo griseus Bell's vireo, Vireo bellii (A) Hutton's vireo, Vireo huttoni Yellow-throated vireo, Vireo flavifrons Cassin's vireo, Vireo cassinii Blue-headed vireo, Vireo solitarius Plumbeous vireo, Vireo