Males in heat stress will have swollen testicles. A normal adult temperature is 100 to 101 degrees . 103 and higher is trouble. Llamas should be sheared in the spring. Poisonous plants and trees.
Llamas are browsers, they like to eat a variety of things.
A number of these can be lethal. Rhododendron and wilted cherry are among the most well-known examples of vegetation that have proved lethal. There are lists available of toxic plants and trees, check with any one of the associations devoted to camelids, or your Extension Agent, who is a good resource and whose services are paid for with your taxes . Llamas don't like to be alone. Even responsible purchasers, who have listened to responsible owners and bought a pair of llamas, can run into trouble.