Really sad u lost her. First off, want to praise your awesome flock guardian dog. I have dogs that protect my free-range flocks too, & consider my dogs truly priceless. When u described the scenario, my first thought was "hawk." A local redtail hawk makes regular flyovers here, but decides to go elsewhere when it sees the dogs. I am rural and suspect it had a close call with a coyotes, so sees my dogs as serious threats.
When u mentioned she wasnt recovering well, i did suspect internal injuries. Because I Have occasionally lost chickens to the hawk when my dogs are not in plain sight. (I have 3 separate flocks that roam pastures and woods). "My" redtail's modus operandi is to dive from a large tree and hit their neck with full force. A couple of years ago, i rescued a hen in time after hearing rooster alarm calls. But after a month of trying to save her, she never was able to eat or drink properly due to a partially crushed trachea. This past summer, i reached a hen almost immediately after hearing the rooster alarm calls. The hawk flew away, but the hen was already dead. Her neck was broken and she died immediately. Your hen's attacker may of course also have been something else, including a fox. All predator species are very hungry this time of year due to low wild prey numbers. Whatever attacked your hen may have decided an attempt was worth the risk of your dog being nearby. After your dog's response, i would be very surprised if the attacker succeeds again. Very sad for your hen, but very impressed with your dog!
When u mentioned she wasnt recovering well, i did suspect internal injuries. Because I Have occasionally lost chickens to the hawk when my dogs are not in plain sight. (I have 3 separate flocks that roam pastures and woods). "My" redtail's modus operandi is to dive from a large tree and hit their neck with full force. A couple of years ago, i rescued a hen in time after hearing rooster alarm calls. But after a month of trying to save her, she never was able to eat or drink properly due to a partially crushed trachea. This past summer, i reached a hen almost immediately after hearing the rooster alarm calls. The hawk flew away, but the hen was already dead. Her neck was broken and she died immediately. Your hen's attacker may of course also have been something else, including a fox. All predator species are very hungry this time of year due to low wild prey numbers. Whatever attacked your hen may have decided an attempt was worth the risk of your dog being nearby. After your dog's response, i would be very surprised if the attacker succeeds again. Very sad for your hen, but very impressed with your dog!