Answer: swans

AnswerCrossword Clue
SWANS

Stately swimmers

SWANS

White long-necked birds

SWANS

They're white and graceful on water

SWANS
Gift on the seventh day of Christmas
SWANS
Park pond sights
SWANSBoston boat birds
SWANSGraceful swimmers
SWANSSome trumpeters
SWANSAquatic birds
SWANSElegant swimmers
SWANSTrumpeters on a lake
SWANSCygnets' parents
SWANSMajestic birds
SWANSMute and whistling
SWANSLarge waterfowl
SWANSCertain trumpeters
SWANSGraceful birds
SWANSEpitomes of grace
SWANSGraceful pond dwellers
SWANSSome origami creations
SWANS"The 12 Days of Christmas" gift
SWANSBallet birds
SWANSGoose cousins
SWANSGeese cousins
SWANSLong-necked swimmers
SWANSSlim-necked birds
SWANSYeats' "The Wild .. at Coole"
SWANSGraceful trumpeters
SWANSChristmas-carol gifts
SWANSTrumpeter et al.
SWANSLong-necked birds
SWANSSome pens
SWANSSeventh-day Christmas gift
SWANSOrigami creations
SWANS"Trumpeter" birds
SWANSExemplars of grace
SWANSSeven swimmers of song
SWANSGift on the seventh day
SWANSSymbolic water birds.
SWANSThey draw Lohengrin's boat.