Toucan Adaptations

In the present, the toucan is a medium size bird that is quite lazy. It eats fruits and bugs, and its environment is humid and the trees are large. They're healthy, safe, and in a calm environment, having no main predator. In the future, I think all the ice caps will melt causing lots of rising and flowing water, making toucans unable to access fruits and bugs. The toucans will have to resort to eating fish so they grow longer and sharper claws and larger and faster wings to catch up with fish. Also they will grow a sharper beak to eat fish and the area will become misty so the toucans will need to gain better or clearer eyesight. This is what I think will happen in the future.