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#hummingbird

2 posts2 participants0 posts today
Public
Lukas VFN 🇪🇺

#Hummingbird chick acts like a #caterpillar to survive
phys.org/news/2025-03-hummingb

"Unlike most #hummingbirds, the jacobin chick was covered in long brown feathers... they saw a predatory #wasp approach the chick when the mother was away. As the wasp hovered above the nest, the chick started to twitch its body vigorously, swinging its head from side to side. A few seconds later, the wasp flew away... many #caterpillars in this region have similar-looking brown hairs that can give painful stings"

A small bird nest with one egg and one fluffy chick
Public
Lukas VFN 🇪🇺

Hummingbirds in Andes Mountains found nesting in colonies, defying norms phys.org/news/2025-03-hummingb paper: academic.oup.com/auk/advance-a

"#Hummingbirds are often highly aggressive and territorial, but in the tough terrains of the #Andes Mountains, researchers found a species of #hummingbird is living cohesively with its peers... They live in a very harsh environment above the tree line... they may get easier access to mates and food resources by an exchange of information between members of a colony."

photo of a small bird with a long beak sitting on a blooming bush
Public *
Ed Wiebe

Two photos of the same male Anna’s hummingbird. The photos were one second apart. The feathers’ iridescence is structural, not from dyes. It’s caused by layers of tiny granules of melanin in the feather barbules. The melanin is dark brown or black. The structure of the granules results in the nearly specular reflection of narrow wavelength bands of light and the absorption of other colours. Unedited images.

Here’s the science!

pmc.ncbi.nlm.nih.gov/articles/

A male hummingbird is facing you. His gorget, a hood or cowl surrounding his face is brilliantly red, magenta, orange, and bit purple.
The hummingbird is perched in the same spot but is now turned to face left. His gorged is obvious but it’s a deep brown black colour now.
#birds#hummingbird#optics
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