blue
to feel blue

Blue Cotinga
Cotinga nattererii

Blue Coua
Coua caerulea

Blue Crane
Grus paradisea

Blue Cuckooshrike
Cyanograucalus azureus

Blue Duck
Hymenolaimus malacorhynchos

Blue Finch
Porphyrospiza caerulescens

Blue Jay
Cyanocitta cristata

Blue Korhaan
Eupodotis caerulescens

Blue Lorikeet
Vini peruviana

Blue Malkoha
Ceuthmochares aereus

Blue Manakin
Chiroxiphia caudata

Blue Mockingbird
Melanotis caerulescens

Blue Noddy
Anous ceruleus

Blue Nuthatch
Sitta azurea

Blue Petrel
Halobaena caerulea

Blue Pitta
Hydrornis cyaneus

Blue Quail
Synoicus adansonii

Blue Swallow
Hirundo atrocaerulea

Blue Vanga
Cyanolanius madagascarinus

Blue-black Grassquit
Volatinia jacarina

Blue-breasted Blue Flycatcher
Cyornis herioti

blue-collar
blue-collar worker

Blue-fronted Blue Flycatcher
Cyornis hoevelli

Blue-throated Blue Flycatcher
Cyornis rubeculoides

BWU
blue whale unit

Cambridge
Cambridge blue

dahlia
blue dahlia

navy-blue
navy-blue suit

sky-blue
a sky-blue dress