park

Today when I went down to the park it was cloudy mostly cloudy. When I was by the breakwater, I saw some seagulls and ducks. When I was by sage beach, I saw some ducks, seagulls and goldeneyes. When I was in the park by a opening, I saw a bufflehead out in the water that had just come up from diving. When I was at the battle site bench, I sat on the bench foe a bit. It was high tide and there was only a small patch of beach. Some seagulls were on that patch of beach, most of the time they were in the sunlight so I could not see what they looked like as well. When I was on the trail by the river, I saw some seagulls, ducks and a wigeon out in the water. When I was nearing the end of the trail by the river, I saw that most of the rotting fish had been moved off the trail, but some bits of it were still on the trail. I stepped on one of those bits, on accident. When I was on my way home, I heard some juncos in some bushes.
Why had most of the fish been moved but some of it stayed on the trail?
Why did I have to step on one of the fish bits?
Why was there only one bufflehead out in the water, that it saw anyways.