An "extremely rare" half-female, half-male bird has been caught on film, a sighting that has only been made once more than 100 years ago. Zoologist and professor at the University of Otago in New ...

World Extremely rare bird — half-male, half-female — spotted in Colombia, video shows By Aspen Pflughoeft Updated December 15, 2023 8:17 AM ...

Trilobites This Bird Is Half Male, Half Female, and Completely Stunning A green honeycreeper spotted on a farm in Colombia exhibits a rare biological phenomenon known as bilateral gynandromorphism.

Female flickers are mostly gray in the face while males in our area usually have a black stripe just behind the bill. Technically, this is known as a "malar stripe," but it's easier to think of it ...

Take a bird flying from the United States to Panama as part of its yearly migration. If female birds fly even slightly farther than males, that’s more time spent in the crosshairs of predators ...

A beautiful, conspicuous and charismatic bird, the northern flicker has been branded with scores of colloquial names. Frontier ornithologist John James Audubon dubbed it the golden-winged woodpecker.

“It was spectacular. This bird is in its nonbreeding [plumage], so in the spring when it’s in its breeding plumage, it’s going to be even more starkly male, female,” Lindsay says.

A rise in studies on female bird behavior shows how gender equity can spark change in research. Omland, Rose & Odom/The Conversation Sep 28, 2020 3:14 PM EDT ...

This ‘Extremely Rare’ Bird Is Half Female, Half Male The green honeycreeper is only the second of its species ever observed with this condition—and the first recorded in more than 100 years ...

"Here was this bird with two halves: one male half and one female half." Green honeycreepers' habitat range extends through Central and South America, from southern Mexico to Brazil.

This Extraordinary Bird Is Both Male and Female, Divided Down the Middle Scientists were stunned to discover it. By Daisy Hernandez Published: Oct 09, 2020 3:04 PM EDT Save Article ...

Researchers with a team monitoring bird populations at Powdermill Nature Reserve, in Rector, Pennsylvania, netted a surprise on September 24: a rose-breasted grosbeak with bizarre coloring. It had ...