Hello Mike- I am contacting you from the Cape myself, and you will have no problem taking your chickens on vacation with you. How old and big are they? What are they going to be traveling in? I suggest keeping them inside at least for nights because of all the predators we have around here. From land and the Red Tailed hawks are bad too. Also think of possibly just bringing 2 of the 4 chickens. If you are a teen I suggest calling the Town Hall of whatever town you are going to and asking about the chicken laws there just to double check- if you are younger ask you parents for help before you call. You dont need to get into detail with them just say I live in , insert town here, and I want to get chickens- arethere any laws against it? If any it may say that there is a maximum # of birds you can have and then some town don't allow Roosters (male chickens). Good luck to you - your Grandpa is going to love your birds!