Aviculturist: someone who raises birds.
Ornithologist: studies birds - usually has degree related to birds.
Birder: someone who enjoys Birdwatching.
Avian Enthusiast: someone who enjoys being an amateur expert on birds.
A farmer is the title given to a person who tends crops or raises animals.
A person who studies bird is a ornithologist
The study of birds is called ornithology The person who studies birds is called an ornithologist
A person who studies about birds called an ornithologist.
The study of birds is called Ornithology.
A cattle farm worker is called a herdsman.
Beater
A person who studies birds is called an ornithologist.
A person who studies birds is called an Ornitholoigst
If you are looking for the answer to a crossword then think in terms of raising the birds from the gound. Your answer will be beater.
An apiarist is a person who raises honeybees. The bees are usually kept in boxes and used to make honey and pollinate plants.
A person that assists in handling animals can be called a groom if they work with horses. A person who works with zoo animals might be called a trainer, zookeeper, or handler. A person who raises animals for food might be called a rancher or dairy farmer.