Wilson’s warbler vs. black-crowned yellow warbler, I prefer the first one. For the same reason I'd choose zebra over "black and white striped horse". I have no idea who that Wilson in the name is and I prefer to be ignorant. The fact that both of the words start with "w" is enough to make the name easy to remember and kinda fun.
That’s fair, and I wouldn’t really disagree if it was one of the only ones. But we already have a black and white warbler, blackpoll warbler, chestnut-sided warbler, yellow-rumped warbler, magnolia warbler, Canada warbler, Nashville warbler, and at least a dozen others. It might be cute and fun to change them all to alliterative names, but it would definitely be way more confusing. I honestly don’t really mind having a few with random names, but I don’t think it’s a great loss either.