The cats eat the heads off of rabbits because for the cat the head is the best part of the rabbit for them to eat.
A cats instinct is to kill even when they have fed recently, and they have been known to take just the heads as well.
Another possibility - again much lower on the list of suspects than a free-roaming cat - is the great horned owl.
Domestic cats do not need to make their own kills.
You should remove a dead bunny from the nest.
If a baby bunny dies in the nest it's best to remove the dead bunny as it can give off infections and the decaying of the dead bunny could cause health issues with the live bunnies that are in the nest.
Just put on some gloves before removing the dead bunny from the nest.
Then dig a hole and bury the dead bunny.
According to superstitions a dead rabbit on your doorstep is an indicator of and means that your opportunities are long gone.
Finding a dead rabbit in front of your house indicates that your opportunities are long gone.
The direction in which the rabbit is crossing your path is also essential.
Live rabbits on the other hand are usually a symbol of good luck and good things to come for you.
According to the Easter legend, a rabbit is a good luck charm as it brings life on earth.
It is believed to lay, decorate and hide Easter eggs are a symbol of new life.
An old English superstition considers saying 'Rabbit' thrice in a row on the first day of the month to have good luck throughout the 30-days.
Rabbit symbolism and meanings include sensitivity, gentleness, fertility, haste, new beginnings, the moon, and good luck.
Rabbits live on every continent except Antarctica, so they appear in the mythologies and folklore of cultures around the world.