Click the green flag and use your binoculars to spot the birds in the game. You can also use your mouse as well to move the binoculars. And click the "Show List" to show the list of birds and their rarities. To close it, click the "Hide List" after clicking it.
In A Birdwatching Day, you can see some birds in the game. Use your binoculars to find the birds and you can gain more birds on your watchlist! There are five birds in the list, the Javan Myna (Common), the House Crow (Common), Black-naped Oriole (Uncommon), the Asian koel (Rare), and the Oriental Pied Hornbill (Very Rare.)