BirdNote

El cóndor andino ( Vultur gryphus) es una de las aves voladoras más grandes del mundo. Con una envergadura que supera los tres metros, el cóndor no aletea tanto como navega el viento, aprovechando las corrientes térmicas para deslizarse durante horas sobre la cordillera de los Andes. Alguna vez

Sandhill Crane families form a close bond. A pair of adults might travel north with their young from the previous summer, along with grown-up offspring from several years ago. After the breeding season, families will stick together for the journey south and the winter, even in large flocks. The

Palmyra Atoll is a ring-shaped island encircling a lagoon in the South Pacific. The atoll lost many native trees due to U.S. military activity during World War II. Conservationists have worked to restore the ecosystem. Seabirds such as Black Noddies and Red-footed Boobies nest in the island’s

There are five million bird eggs stowed away in museums across the world — and the study of eggs, called oology, can give us great insight into birds. The link between DDT and the decline of Peregrine Falcon populations was identified in part using museum and personal egg collections, and this

Kiwikiu, also known as Maui Parrotbill, used to be found all over Maui and Molokaʻi. Now, fewer than 150 individuals exist and kiwikiu are currently restricted to a tiny region of high elevation forest on the slopes of Haleakalā. A translocation effort to expand their range was unsuccessful due to

Yellow-eyed Juncos sometimes make a migration of sorts — not from north to south, but from the high mountains to the lowlands or the other way around. It’s called altitudinal migration. In the warm summer months, some Yellow-eyed Juncos prefer to nest at higher elevations. In winter, however, the

Isaiah Scott was in middle school when his family took him to visit the Cornell Lab of Ornithology. He remembers seeing a huge mural showing hundreds of colorful birds spread across a map of the world. That painting, called the Wall of Birds by Jane Kim, got Isaiah curious about how many of those

Chicago has been in the spotlight quite a lot as of late, but one of its most remarkable attributes can be seen in the night sky: nocturnal bird migration. In this episode, our host Deja Perkins speaks with J’orge Garcia of the Windy City Bird Lab about how he’s integrating technology and birders to

Los colibríes son admirados por su belleza, sus colores brillantes y su forma de volar tan única. Pero en algunos lugares son víctimas de una tradición peligrosa. En ciertas regiones de México, estas aves son capturadas y matadas para usarlas en hechizos de amor conocidos como “amarres de chuparosa”

Sometimes, a species’ song changes over the course of a few decades. But a bird that lives in the mountains of eastern Africa, the Forest Double-collared Sunbird, appears to have kept the same song for at least 500,000 years. That’s the amount of time that two populations of the species split up