Videos

The gadwalls were stealing algae from the Eurasian coots.

There are about fifty gadwalls and several Eurasian coots in the river.　

The coots collect algae at this time of year. The gadwalls attach to the coots. When coots are collecting algae, the gadwall will take away the algae spilled by the coot, and sometimes the algae that the coot is holding.


The coot dived to collect algae.

A gadwall stole algae from the coot.

The next is a video of the sequence of actions.

The other scene is next.
A coot dived to collect algae.

A gadwall chases the coot that has taken algae.

The gadwall tries to steal algae from the coot.

The gadwall stole algae from the coot.

Next is a video of the sequence of actions.

A flock of great egrets waiting for fish to come upstream

At Kubo Weir, I witnessed the great egrets that flew away (7:49). When I followed those great egrets, there were 35 birds downstream of Miyashita Bridge (8:13). There was no noticeable movement for a while. The birds caught the Haya that had run up all at once (8:31). The birds were catching fishes for about 4 minutes. The birds can no longer catch fish. Shortly after, the birds began to move to the other side of the bridge (8:37). After catching the fish for a while, the birds returned to their original downstream side (8:44).
It is said that great egrets waiting for fishes to come upstream can be seen only at this time.

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