park

Today when I went down to the park, it was snowing and a bit cold. When I was walking the snow melted on me making me a bit wet. When I was on the breakwater I saw some seagulls. When I was in the park, water from the melted snow was dripping from the trees. When I was at the battle site bench, I went out and walked on the bench.The beach was covered in snow. When I was out on the bench, I saw some black oystercatchers fly away, and I saw some crows out by the water. When I was by the trail by the river, I saw two swans, some ducks, some goldeneyes and a green winged teal. When I was taking photos of the green winged teal, the swans came close to me and then swam away. When I was on the trail by the river, I saw some more ducks, some buffleheads and some mergansers. When I was on my way back home, I saw some juncos.
Why was there a green winged teal there?
Why was so much water dripping from the trees?
Why did the swans come closer to me when I was taking photos of the green winged teal and then swim away?