Hello, I've noticed 3 of my llamas are shedding/losing hair along their necks. It started with an area on the front of their necks and has spread to their entire neck. At first it was just 1 llama and after a week another llama started losing hair and now 3 of them are losing hair on their necks. I don't see any other abnormalities and I don't see any lice. The weather was very hot when I noticed the first llama, but now its getting cooler and I was curious if temperature change could be the cause? I've looked throughout the forum but most hair loss seems to also come with skin irritations, scabs etc. I don't see any of this on my llamas. Its been over a week but they continue to lose hair along their necks. Any thoughts? Should I consult a vet? Thank you so much! Melissa