Hello, everyone! While strolling along the coast, you might occasionally notice small shadows fluttering back and forth. Among them, the Dunlin particularly catches the eye. This little bird visits Japan as a migratory or winter bird from September to the following May. Today, let’s take a leisurely walk and introduce some little secrets about the Dunlin.
The Dunlin has a total length of about 21cm and a wingspan of about 37cm, making it a small yet conspicuous bird. Its bill curves slightly downwards. In its winter plumage, it boasts a chic gray color. Its entire body turns a pale gray, and its belly is pure white, resembling a cute little cloud. The bill and legs remain black, and as spring passes and summer arrives, the Dunlin undergoes a transformation. Its summer plumage features reddish-brown from the head to the back, with distinctive black spots appearing on its belly. These spots are helpful for distinguishing it from other birds!
Dunlins prefer coastal mudflats, sandy beaches, and estuaries. But, interestingly, they also appear along the shores of lakes and in rice fields. The sight of them flying in large groups of tens of thousands is breathtaking! This large flock is said to gather almost the same members every year.
Dunlins are carnivorous, feeding on ground-dwelling shells, small crabs, and worms. During the breeding season, they lay 2 to 6 eggs, and both males and females take turns incubating them. The males take care of the chicks. Their calls include muffled sounds like “juui” and “jiririri,” and clear sounds like “piri,” showing a variety of expressions.
However, the number of Dunlins has been decreasing in recent years. It’s important to cherish their habitats. Next time you walk along the beach, please pay attention to the Dunlins. You might be able to feel the seasons through their attire!
