Hello, welcome to Backyard Chickens!
Congratulations for becoming part of the flock!
Hawks can be a bad situation so I would definitely keep their run area enclosed. Good luck on constructing a new run. Here is the link to the "Breed and Gender" forum if you have trouble searching for it.
https://www.backyardchickens.com/forums/what-breed-or-gender-is-this.15/

Hawks can be a bad situation so I would definitely keep their run area enclosed. Good luck on constructing a new run. Here is the link to the "Breed and Gender" forum if you have trouble searching for it.
https://www.backyardchickens.com/forums/what-breed-or-gender-is-this.15/