a black-backed wagtail (Motacilla alba lugens)

the color white / (by extension) innocence / (go) a white go stone / something unwritten / (colloquial) the white team in a 紅白 (kōhaku) group / (colloquial) an unlicensed prostitute

wagtail

park

beluga whale; white whale (Delphinapterus leucas)

parkway

a forest-park, arboretum

park that is designated by nation and maintained by prefecture (in Japan, 都(と)道(どう)府(ふ)県(けん) (todōfuken)) or other local government; quasi-national park

national park

the color white / Short for 白人 (hakujin): an amateur / a performer's lines / (mahjong) a white dragon tile