Our mountain retreat here in Costa Rica offers a paradise of serenity and astonishing biodiversity. While many creatures thrive in our lush forests, a special guest arrives during the winter months and frequents the wetlands at the foot of our mountains: the Least Sandpiper.

Aprovecha al máximo tu estancia: continúa con Senderos de Caminata en Costa Rica.

This small shorebird might be easy to overlook, but for those who appreciate the wonders of the natural world, it is a captivating sight. Let’s delve into the fascinating life of this feathered friend that adorns the wetlands of Costa Rica during its migratory stay.

A Miniature Master of Migration

The Least Sandpiper (Calidris minutilla) lives up to its name. It is one of the smallest shorebirds in North America, measuring just between 15 and 17 cm in length. But what it lacks in size, it makes up for in resilience. These tiny travelers undertake incredible journeys, breeding in the Arctic tundra of North America and then migrating south for the winter.

During this time, Costa Rica becomes a stopover and vital winter refuge for the Least Sandpiper. From September to May, these small birds can be observed in our coastal wetlands, marshes, and even at the edges of rice fields near the base of our mountain retreat.

Observing a Spotted Sprite

While the Least Sandpiper may be small, its plumage offers subtle beauty. In the breeding season, adults sport an elegant combination of brown feathers with dark streaks on the back, contrasted by a pristine white belly. They also have a distinctive light line above the eye and a dark crown.

However, during their stay in Costa Rica, you will see them in their winter plumage. This consists of a muted grayish-brown on the upper parts, with a white belly. Juveniles add a touch of vibrancy with their upper body featuring lively patterns, showcasing reddish tones and white streaks on the mantle.

A Life of Bobbing and Probing

The Least Sandpiper is a master of marsh maneuvers. Its short, dark bill is perfectly adapted for probing the soft ground, in search of its favorite meals: small invertebrates like worms, crustaceans, and insects.

Watch them closely as they flit about, their greenish legs constantly in motion. They peck with impressive speed, their small size allowing them to access hidden morsels in the mud that larger shorebirds might overlook. Their feeding technique is a delight to observe, a testament to their remarkable adaptation to life on the edges of wetlands.

A Symphony of Peeps

The Least Sandpiper may be small, but it has a big voice. Its sharp calls, often described as a series of «peeps» or «zeets,» can be surprisingly loud for such a small bird. These vocalizations play a crucial role in communication, helping them stay in touch with each other and defend their territory.

A Temporary Treasure

The presence of the Least Sandpiper in our Costa Rican wetlands is a seasonal gift. In May, they will be on the move again, heading back north to their breeding grounds. But their brief stop enriches our local ecosystem and adds another layer of wonder to the biodiversity we cherish here at our mountain retreat.

So next time you explore the wetlands near our retreat, keep an eye out for this little gem. With a bit of patience and observation, you might be rewarded with a glimpse of the Least Sandpiper, a small testament to the inspiring power of nature’s migrations.

Para obtener más información, consulte nuestra guía completa sobre las aves de Costa Rica.