alright, dont buy an owl. owls are hard to buy, you need a permit, and even harder to take care of. if you even get hold of an owl illigally it will be a horrendus burden on you. its like having a two year old, some people say, but its alot worse. like having sextuplet two year olds. #1. they cant be potty trained. #2. They can't be trained and run wild. #3. They need a lot of space and their wings cant be clipped.
I dont know how much your mom wants an owl. are you sure its not you who wants the owl, and you want to get your mom to take care of it? Im not critisizing you, ive just felt that way. if thats how you feel, dont get any sort of bird. If you want a bird you really have to be willing to take care of it.
First off their cages MUST be changed everyday. if not they could get very sick, and a sick bird is a lot of trouble and very expensive. Second, they live from at least 12-100 years. If you really want a bird you have to be dedicated. Third, if you make your mom take care of the bird, he will love your mom, not you. Birds pick favorites. If you want a bird, you cant have any regrets. Giving away a bird or selling one or dying before the bird is traumatizing for the bird.
If you really are dedicated enough to have a bird i recomend a few first bird types. Hand Fed Budgie. Lives 15 years, very small and smart, one of the more low maitenence birds. (Always get a hand fed bird (or weened), they are much kinder to humans and are trained to think of humans as their "pack".) Also cockatiel. I had a cockatiel, and they are wonderful pets. Quaker Parrots are also good starter birds. Seriously. get a small starter bird before you try a harder bird like an african grey, amazon parrot, macaw or eclectus. These birds are HIGH MAITENENCE, and they live up to 100 years, if you want a bird like this, you honestly needbird expirience to take care of them.
If you think your going to get bored of your bird, or if youve ever got bored of a pet before dont get a bird.
I know this may not be what you want to hear, but its something that all people NEED to know before getting a bird. I hope i helped.