two Cuban Tree frogs (NW Gainesville)

We have discovered two Cuban tree frogs living in our wind chime outside of our window. I have confirmed what they are with UF. Because they are invasive, they have to be euthanized or kept as pets. It is illegal to release them. I am not sure if I am able to catch them and kill them humanely in the way we were told to do. I anyone wants to keep them to raise as pets or would help me dispatch them, I would be very appreciative. Thanks.

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