stalking

It started with just circling and then landing in the distance. Now every day a pair of Ravens are standing about 20ft from the coop just watching the chickens and they’re getting braver. The used to fly away as soon as they saw me but now they don’t care. I’m very nervous. Should I be worried...

My 4 year old black Australorp, Polly, has suddenly turned really nasty. Her whole behavior is off. She is clucking constantly where she has generally been quite a quiet girl. She is frequently fluffing every feather on her body to stand on end, like hackles on a dog - see attached pic. It's...