To me the question is, why this bird (whether it evolved or created) needs to dive so deeply to get fish since there are plenty of other kinds of birds who live nearby who also feed on fish, without having to go to such extremes to catch them.
Whether or not the bird in question evolved or was created, there is still no proof that God's name is Jehovah or that Jehovah's Witnesses are his chosen people as they claim to be.