In judaism they are sacrificing animals after they "move" their sins at the animal.
Goats on yom kippur - old custom was to tie red ribbon to neck of the goat and throw it from a cliff to die as a gift to their perverted idea of Satan. The ribbon would be a symbol of their sins. Their version of Satan would be then obliged to defend the jews before the court of their god instead of prosecuting them before god. In this situation god would have no choice but to punish non jews for jewish sins. If Im correct another version of this was to banish the goat into the desert, where they believe Satan lives. Satan means Truth so you can judge yourself if it makes sense.
Chickens on the eve of yom kippur, in this case its called kapparot. For the same reason
Red Heifer cows in jewish temple, probably the same. There was a lot about it in the news lately, you can google it. Most probably same reason as above
Qurbani means sacrifice. Every year during the Islamic month of Dhul Hijjah, Muslims around the world slaughter an animal – a goat, sheep, cow or camel – to reflect the Prophet Ibrahim's willingness to sacrifice his son Ismail, for the sake of God.
Its all sick and perverted. Honestly there is nothing interesting here to study except how enemy operates. Dont connect to these ideas / energies.
Animals are beautiful and lovely creatures. Well maybe except mosquitos. Many Gods have their favorite animal like Odin and his crows Huginn and Muninn, or Anubis and his jackal, Bastet and the cat, Satan and the peacock, and many more