Young hawks doing fly-bys

[Lulu-vt]

My chickens are still pretty young, about 10 weeks old but they have grown well and seem almost full sized. I built a very sturdy coop but I’m still working on the outdoor run.
While I’m working on it, I have the chickens free range. They stay close to me and the coop.

Yesterday while I was working, a hawk flew by, very close. He did a fly-by like Top Gun in through the woods where we were. I yelled “get away, get away” but he wasn’t phased. Even my dog was barking.

This hawks body seemed pretty little, maybe he’s a teenager? Could he do harm to my chickens? I seriously doubt he could lift them. But I don’t have my protected outdoor space ready yet. And foolishly I thought they would be semi-protected if they stay in the tree cover and undergrowth of the woods.
What could he do to them?
There is a hawks nest in a very tall tree above our property. They have been there for years. We also have all the other predators as well, raccoon, fox, weasel and bears. Their coop is tight as I’ve lost past flocks before. But this hawk thing is pretty new for me.

 

[ChicNmom]

It wouldn't be able to carry one off but it could still kill one or severely injure it.

 

[Cascadia]

The hawk can probably kill your chickens but not carry them away. I've had a tiny hawk kill one of my chickens even when they were in a heavily fortified cage. My advice is to see if the hawk comes back. Then you might have to put your chickens in some sort of cage nearby. The hawk probably won't attack with your presence next to the chickens.

 

[SourRoses]

They are more capable than you think. But at a young age, it's about what they think. They usually lack confidence. Birds of prey prefer easy approaches while they're learning to hunt. Once the bird is confident they are pretty hard to beat.
My suggestion for temporary deterrents is not just to yell, but to throw things. Wave your arms and run around. They hate when humans start acting really weird. Move fencing around or string lines up in the clear approach areas. We sometimes have put the hose on jet and sprayed up at the trees if a hawk decides to just hang out.
Make sure you have several areas of cover for the chickens to flee under, wide open fields are the worst scenario.
Our saving grace has been crows. They come in and mob the hawks. Pretty soon the hawks only come by when the crows are away. But if they come back and see the hawk there is always some drama. The chickens learn pretty fast to get under cover quickly when the hawks are near, but they seem to relax and spread back out when the crows come in cawing.
I've yet to lose a chicken to a hawk, Thank God, although we have seen many. Even had one land and walk in the pop door of a chicken coop, but it was too upset at being trapped to go after the chickens still inside.
Often I've considered feeding the crows so they can stay put and guard all day, but they are very intelligent and I don't want them to start knocking on the windows when they think it's snack time.