Miyagi Prefecture Wild Bird Society of Japan - Miyagi Prefecture Branch Birdwatching in Tori-no-umi (Sea of Birds) Sunday, 25 April; 9:20 - The area is an important tidal flat area. Many shorebirds are to stop over here during April - May. the Association to Save Gamou Nature watching at Gamou Coast 5 May (National holiday); 9:30 - At Gamou coast near Sendai City - the prefectural capital. Tidal flats are international airports for migratory birds. May is the busiest month with them. The main passengers for this season are shorebirds.