In a dry woodland a high-pitched, nasal call is heard in the distance, then another and another. As the calls become louder and more numerous, birds that look like small, stocky, blue crows appear, streaming past in a loose flock of dozens or even hundreds. These are Pinyon Jays (Gymnorhinus cyanocephalus), gregarious birds found throughout most of the state in pinyon-juniper woodlands and known for their close connection to pinyon pines.