Here's a link for your area, an animal rescue group:
http://www.pgaa.com/michigan.html
Have your Husband catch all the worms he can, before he leaves.
The bird, does not yet have his eyes open.. .so he is still quite vulnerable.
Research online, what kind of bird it is, and what it eats.
Some birds eat worms or insects or fruit... or are omnivorous.
Also use a medicine dropper to give it water.
Call a pet store to see if they have live food, for it. For birds.
Check if your area, has a bird rescue group... some people, will take in baby birds, or found injured birds.
Call a Vet, and ask them too.
The bird can't be out in the wild by himself... he will get prayed on. He can't fly yet.
Good luck,
Susan