park

Today when I went down to the park it was sunny but there was still some ice on the ground.
When I was out on the breakwater, I saw some ducks, sea gulls and a great blue heron. The great blue heron was on the same post as the others were and it was standing on one leg.
When I was in the park, I saw some varied thrushes on the trail and in the bushes.
When I was at the battle site bench, it was low tide, and I saw some sea gulls out by the water.
When I was on the trail by the trail by the river, I saw some crows out on the beach along with some ducks. I also saw a squirrel in a tree by the trail.
When I was on the trail by the river, I saw some ducks.
When I was on my way back home, I saw a squirrel, juncos and a collard dove in someones yard. I tried to get a photo of the collared dove, but it was behind branches and then it flew off.
Why hasn’t there been many collared doves around?
Why do birds stand on one leg sometimes?
Why was there still ice on the ground?