Following are all the butterbump like words, in the list below.
TROMBONE
100% like butterbump
EURASIAN BITTERN
100% like butterbump
GREENBONE
100% like butterbump
GREAT BITTERN
100% like butterbump
LITTLE BITTERN
100% like butterbump
COMMON BITTERN
100% like butterbump
WATER CROW
100% like butterbump
BABILLARD
100% like butterbump
RUDDOCK
100% like butterbump
THUNDERFISH
100% like butterbump
SHITEPOKE
100% like butterbump
BOONK
100% like butterbump
BUTTERBALL
100% like butterbump
HAYBIRD
100% like butterbump
SPARLING
100% like butterbump
WHEW DUCK
100% like butterbump
STAKE-DRIVER
100% like butterbump
DUNKADOO
100% like butterbump
YELLOW BITTERN
100% like butterbump
BRONZINI
100% like butterbump
EUROPEAN BULLHEAD
100% like butterbump
COBWEB
100% like butterbump
ROBINET
100% like butterbump
REDBREAST
100% like butterbump
BLUEBREAST
100% like butterbump
AMERICAN BITTERN
100% like butterbump
EPERLAN
100% like butterbump
LITTLE GREBE
100% like butterbump
ZARTHE
100% like butterbump
SEA DACE
100% like butterbump
BUNYIP BIRD
100% like butterbump
EUROPEAN CHUB
100% like butterbump
KAKKAK
100% like butterbump
BILCOCK
100% like butterbump
EUROPEAN STURGEON
100% like butterbump
LAUGHING GULL
100% like butterbump
UNKE
100% like butterbump
POOL SNIPE
100% like butterbump
ROBIN
100% like butterbump
BOUNCE
100% like butterbump
LAUGHING GOOSE
100% like butterbump
MILLER'S THUMB
100% like butterbump
ORTOLAN
100% like butterbump
ROTCHET
100% like butterbump
NIPPER
100% like butterbump
WAMP
100% like butterbump
HERRING GULL
100% like butterbump
EURASIAN NUTHATCH
100% like butterbump
EUROPEAN MOORHEN
100% like butterbump
WISENT
100% like butterbump
WHITERUMP
100% like butterbump
EUROPEAN STARLING
100% like butterbump
LAMPERN
100% like butterbump
CUNNER
100% like butterbump
PEEWIT
100% like butterbump
SKIPJACK
100% like butterbump
SUN BITTERN
100% like butterbump
BOOMER
100% like butterbump
MORGAY
100% like butterbump
BERGANDER
100% like butterbump
ALBURN
100% like butterbump
MACKEREL BIRD
100% like butterbump
BULLHEAD
100% like butterbump
BROOK LAMPREY
100% like butterbump
RIVER OTTER
100% like butterbump
GREEN LINNET
100% like butterbump
BUFF-BELLIED PIPIT
100% like butterbump
GUFFER
100% like butterbump
TEREK SANDPIPER
100% like butterbump
FLUTEMOUTH
100% like butterbump
EUROPEAN TOAD
100% like butterbump
TOPKNOT
100% like butterbump
EURASIAN BLACKBIRD
100% like butterbump
GREAT CRESTED GREBE
100% like butterbump
GAREFOWL
100% like butterbump
COMBER
100% like butterbump
YELLOWTAIL
100% like butterbump
WOOD NUTHATCH
100% like butterbump
MOCKBIRD
100% like butterbump
EUROPEAN PIED FLYCATCHER
100% like butterbump
CIRL
100% like butterbump
LITTLE TERN
100% like butterbump
NETTLE-MONGER
100% like butterbump
EUROPEAN STONECHAT
100% like butterbump
EURASIAN WOODCOCK
100% like butterbump
BARBASTELLE
100% like butterbump
GOLDFINCH
100% like butterbump
BROWN HARE
100% like butterbump
COULTERNEB
100% like butterbump
SPOTTED SANDPIPER
100% like butterbump
HARPY
100% like butterbump
SOLDIER CRAB
100% like butterbump
SQUAWK
100% like butterbump
BRASSE
100% like butterbump
CHUB
100% like butterbump
GREEN WOODPECKER
100% like butterbump
BEECH MARTEN
100% like butterbump
BLACK-WINGED PRATINCOLE
100% like butterbump
EURASIAN WRYNECK
100% like butterbump
ENGRAILED
100% like butterbump