Black alders in a lagoon

I went to Niigata in the beginning of this month.
A purpose is to watch "Snow Goose" which is a rare bird.
In late years we got possible to watch this bird regularly.
As for the birds, eight of them were in the Asahi Pond.
These birds did a trip of 4,000 kilos from Wrangel of the extreme north.

An image is Fukushima-Gata 'lagoon'．
trees appearing in the surface of the water are black alders.
I felt that the color of a marsh overgrown was warmly.