What can go behind the Green Glass Door?

[BallyFarm]

So the object of the game is to figure out what can go behind the green glass door. Certain things can’t but some things can. And you need to figure out what can and what can’t. Just if you figure it out don’t give it away! I’ll let you know if it’s right or not!
First round:
Eggs can go behind the Green Glass Door but chickens can’t.

 

[Fanci Feathers Marans]

Spoiler: guess

double consonants

 

[CatWhisperer]

Plants

 

[BallyFarm]

Plants

Plants can not go behind the green glass door, but carrots can.

 

[BallyFarm]

Spoiler: guess

double consonants

You got it!!

 

[CatWhisperer]

Rabbits

 

[BallyFarm]

Rabbits CAN go behind the green glass door but Kits can’t!

 

[CatWhisperer]

How terrible no kits!
Kittens and puppies behind the green glass but no cats and dogs to eat the rabbits.