Wild birds Unlimited is just a store, you could call them and see if they have a phone number of local wild life rehabilitators. If you can reach the nest, just put the bird back in. It's a myth that the mom won't feed it, I've done it many times.
Rich, I am glad you thought to contact us. Mary is correct if you can reach the nest then please do put the bird back in. Please do call the store if you are not able to reach the nest and you are still concerned, we definitely have local rehabbers to refer you to and we will get you in touch with one close to you.
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