Blue-gray gnatcatcher
Polioptila caerulea

Size: 4.5 inches
Overall Color: gray
Occurrence: widespread
Diet: insects, spiders
Nest: tiny cup
Field Identification: long tail, mostly white below, white eye ring, hyperactive
Season: winter

Kingdom: Animalia (Animals)
Phylum: Chordata (hollow nerve cord)
Subphylum: Vertebrata (backbone)
Class: Aves (Birds)
Order: Passeriformes
Family: 66 Sylviidae (gnatcatchers)
Genus: Polioptila
Species: caerulea