that's a tough question to answer, and one I ask myslef every spring (without the funding limitations - I have a small purse). March/April is not the best month for shooting wildlife in the states most animals are shedding both antlers and hair so they dont look very photogentic. That said, I'll bet there's a few guys that can put you on some amazing birds. I know that here in Montana the bird migration can offer some great shooting opportunities. Obviously not the same as shooting whales where it's likely warm! But fun nonetheless.
It's a great questions, I hope other's give you some help. I'd like to see what they have to say.