What I always do at the beginning of a project, is make an objects bank layout. I put the first one of every object type in that layout. When objects are spawned, they are like the first one by default.
If you didn't do this, you will have to locate the first chicken (The debugger is best for this, just click on no. 0 of that object type. Then remember which object that is [possibly its UID]), and close the debugger. Locate that chicken and drag it out of the screen, and set the platform default controls disabled.
I hope this helps you.