swallowtail in Polish
swallowtail in Polish
ogon jaskółki
The forked tail of a swallow.
proporczyk
Anything, such as a burgee, of a similar forked shape.
frak
A type of tailcoat with two long tapering tails.
paź królowej
Any of various butterflies of the family Papilionidae, many of which have a long extension to each hindwing.