For baby rats, you could probably use the plastic ones that are designed for mice. Rats are sometimes too strong for them and can break out, but they should work for the babies.
https://www.homedepot.com/p/Harris-Catch-and-Release-Humane-Mouse-Trap-2-Pack-2EMT-LIVE/306929732?source=shoppingads&locale=en-US&mtc=Shopping-B-F_D28O-G-D28O-28_1_CHEMICALS-MULTI-NA-Feed-PLA-NA-NA-BASE_SHP&cm_mmc=Shopping-B-F_D28O-G-D28O-28_1_CHEMICALS-MULTI-NA-Feed-PLA-NA-NA-BASE_SHP-71700000041058679-58700004692201305-92700046037945386&gclid=CjwKCAjwkoz7BRBPEiwAeKw3q_7O_KY1syZtWCfWsARhxGZm-ncBNMNLiEWQTVf_AL3FAHEfCVUAPhoCU1UQAvD_BwE&gclsrc=aw.ds







