Translation:Those birds have long and colorful feathers.
I'm confused about the word "tolluk." Is this a plural form? I've seen -ok, -ek, -ök, and -ak as plural endings, but I've never seen -uk (unless the singular word ends in 'u'). Or is it possessive for third-person plural? Or a combination of the two? I thought multiple third-person owners of multiple objects had endings like -aim or -eim?