Oh wow !!!!!!!!!!!!
I cannot believe that organization. If they just don't want to be bothered on a holiday, they should just say so, instead of giving BS advice. That bird needs HELP. Animal bites don't often leave obvious wounds, they can be small punctures that get wickedly infected quickly. And there is a reason that hawk is grounded. Probably was before the dog got to it.
Tell her to keep the dogs away. Contact more places. I will give you the contact info of the rescue I use. They might not answer right away, but they will, esp. if she texts and with a picture. Have her explain what is going on, and ask for advice what to do until they can reach someone. Maybe my local rescue has a list of people?
Its Big Bend 334-763-0102 . The names are Terry and Jon. She can mention she knows about the owl story and needs help for the hawk and what to do and if they know someone in that area to take it to.
Poor baby.
If she will need to try to capture, just tell her to be careful. The claws are sharp and so is the beak. Gloves and a blanket are important. Google any wildlife rescue, raptor organization, etc.