park

Today when I went own to the park, it was cloudy.
When I was nearing the park, I saw a Caterpillar on a Fireweed and I went down and got some photos of it.
While I was taking photos of the Caterpillar, I saw a wasp on another Fireweed and I got some photos of it too.
After I was done taking photos, it started to rain again.
When I was in the park, it was less rainy, but it was still wet.
When I was out at the battle site bench, it was low tide and I saw some sea gulls and ravens out on the beach and by the water.
When I was on the side trail near the trail by the river, I saw some more sea gulls out on the beach, along with a great blue heron and some shorebirds.
When I was on the trail by the river, I saw two people fishing from the other side of the river.
When I was on my way back home, I saw a great blue heron, as I walked by it flew off.
Did those people catch any fish?
Why was the wasp on the Fireweed?
Will the Caterpillar still be there when I go by again?