Author needs help writing a storyline about beagles

Hello, my name is Laurie Lewis and I'm an author. I'm writing a scene where a child has been kidnapped and two beagles have found the child and are laying with it to protect it and keep it warm. The dogs have ignored calls from their owners in order to remain with the child. What I need to know is how the dogs are likely to behave. Would they seems nervous? If so, how would they manifest that? Would they protect teh child from the owners to the point of barking and growling? Would they whimper? Howl? I appreciate the insight.