"There are a lot of rabbits at...an apartment nearby." His apartment. Because this place has a strange sense of humor and decided that his roommates would be several white rabbits. He is not complaining...

But mostly he says it to imply that Yondu is welcome to practice on them, or they can try to add to the current animal population in that apartment by taking these there as well.

"I do not know if it is safe." Is there any where in this world that is currently safe from what is happening?