Chickens growling or stridor?

[Jabecca]

My chickens have been making these noises for a few days. I’m not sure if they are growling or if it could be stridor. My rooster also makes a squeak after he crows. It can be heard just after the seven minute mark.
These are our first chickens, they are around 18 weeks old. None are laying yet, but the leghorns are looking close.
They look great, no nasal discharge. Nothing abnormal other than the noises.

 

[Obsessed With Silkies]

They seem fine to me! My chickens make ALL kinds of noises like that when I go outside to see them.