This week’s featured creature, the Lapland longspur, is a common winter visitor to Oklahoma that isn’t commonly seen. In fact, I would say people rarely ever “see” them. And by that, I mean identify ...

We studied territorial aggression in relation to circulating testosterone levels in free-living birds of four species in northern Alaska. The Lapland longspur, Calcarius lapponicus, is an abundant ...

My, how birding has changed. Just over two centuries ago, in February 1819, frontier ornithologist John James Audubon was exploring the Ohio River near his home in Henderson, Kentucky. Audubon ...

As global warming disrupts local climate patterns around the world, even Arctic breeding birds are affected. But unlike tropical and subtropical birds, which are harmed by rising temperatures, Arctic ...

This news release is available in German. Our internal circadian clock regulates daily life processes and is synchronized by external cues, the so-called Zeitgebers. The main cue is the light-dark ...

I’m not trying to single you out or anything, but lately the questions we receive seem to be getting stranger and stranger. It’s not that a question about a longspur is that unusual, but I don’t often ...

Recent bird sightings as reported to the Mass Audubon: “Most exceptional” last week were a Northern lapwing observed in flight over Plum Island, a Western grebe in Mashpee, a barnacle goose in Woburn, ...