Answer: RAVEN

AnswerCrossword Clue
RAVENPoe called it "grim, ungainly, ghastly, gaunt, and ominous"
RAVENPoe's "ungainly fowl"
RAVENLustrous black
RAVENBird in an Edgar Allan Poe poem
RAVENLoud black bird
RAVENPoe's black visitor
RAVENTitular bird
RAVENPoe poem, with "The"
RAVENPoe's talking bird
RAVENCroaking bird
RAVENPoe's dark creature
RAVENFirst bird off the Ark, in Genesis
RAVENBlack tress tone
RAVENMystery writer's award
RAVENBaltimore pro
RAVENBrilliant black
RAVENLiterary percher on a bust of Pallas
RAVENBird "nesting" in the four longest Across answers
RAVENShiny and black
RAVENCawing avian
ravento devour greedily, also RAVIN
RAVENEither of Odin's information gatherers
RAVENBird in an 1845 poem
RAVENSubject of a work by 56A
RAVEN"Nevermore" sayer
RAVENBird of Odin
RAVENBaltimore footballer
RAVEN"Nevermore" utterer
RAVENPortentous bird
RAVENGrip, in Dickens's "Barnaby Rudge", e.g.
RAVENBaltimore player
RAVENPoe bird
RAVENPoe's percher
RAVENBlack bird
RAVENOne-word bird?
RAVEN"Nevermore" speaker
RAVEN"Nevermore!" croaker
RAVENPoem that begins "Once upon a midnight dreary," with "The"
RAVENRook relative
RAVEN"Nevermore" bird of poetry