This must be the retriever in Peri. She wants to stop and pick up any stick laying around. Sometimes they are small and managable (we call those her cigars!); sometimes they are huge tree limbs. I end up breaking one up to make it easier for her to carry. It is hilarious!
Same here with Sadie. The minute we are out she grabs a stick or branch to carry. We had some storms that left large branches (bigger than her) and she does her best to carry those along.