Are any plants are fatal for chickens to eat?

Yes, there are many plants that are fatal or very harmful to chickens if ingested. Here are some of the most common and dangerous ones:

Highly Toxic Plants:

* Nightshade Family (Solanaceae): Includes tomatoes, potatoes, eggplant, peppers, and deadly nightshade. The green parts of these plants are particularly toxic.

* Castor Beans: The seeds contain ricin, a deadly toxin.

* Oleander: Every part of this plant is highly toxic.

* Yew: Contains taxine, a powerful toxin that can be fatal.

* Poison Hemlock: A highly poisonous plant that can cause paralysis and death.

* Rhododendron and Azalea: Contain grayanotoxins, which can cause heart problems and death.

* Foxglove: Contains digitalis, a toxin that can affect the heart.

Plants That Can Cause Illness:

* Avocado: The leaves and pits are toxic to chickens.

* Mushrooms: Some mushrooms are poisonous to chickens.

* Onion and Garlic: Can cause anemia.

* Alfalfa: Large quantities can cause bloating and gas.

* Raw Beans: Contain toxins that can cause illness.

General Advice:

* Keep your chickens away from any unknown plants: If you're not sure if a plant is safe, it's best to err on the side of caution and keep your chickens away from it.

* Consult a veterinarian: If you suspect your chicken has ingested a poisonous plant, contact your veterinarian immediately.

* Be aware of common garden plants: Many common garden plants are toxic to chickens, so it's important to be aware of what you're planting.

Resources:

* The ASPCA Poison Control Center: https://www.aspca.org/pet-care/animal-poison-control

* The Humane Society of the United States: https://www.humanesociety.org/resources/poisonous-plants-dogs-cats

It's important to remember that this is not an exhaustive list, and there are many other plants that can be harmful to chickens. It's always best to err on the side of caution and do your research before introducing any new plants to your chickens' environment.