#biology is an active hashtag on Bluesky. In the last 30 days, 295 people shared 1,132 posts with it — around 38 a day. Activity is up 6% versus the previous week, peaking on Aug 28 with 87 posts.

Posts with #biology

D. C. Fitzgerald

@dcfitzgerald.bsky.social

2 days ago

A massive sea fan (Gorgonian) coral on a reef. Its flexible, tree-like lattice sways with the currents to maximize filter feeding on plankton while providing crucial habitat and shelter for surrounding marine life. #coral #ocean #diving #biology #nature

6 112 502

D. C. Fitzgerald

@dcfitzgerald.bsky.social

4 months ago

Gouldian Finch (Erythrura gouldiae)...Mother Nature was working with a 'no such thing as too much' philosophy the day she designed this finch...native to a very specific & shrinking corridor across Northern Australia. Though a popular pet bird. #bird #photo #nature #biology #wildlife

Gouldian Finch perched on a textured, tan branch. The bird is a vibrant collage of saturated colors: a bright red face, a deep purple chest, and a brilliant yellow belly, with a leafy green back and wings. A thin turquoise band wraps around the back of its head, and its sturdy beak is a clean, ivory white. The background consists of soft-focus green leaves and light-colored stalks, making the bird’s sharp, multi-colored plumage stand out vividly.

79 451 3603

D. C. Fitzgerald

@dcfitzgerald.bsky.social

2 months ago

Tufted Coquette (Lophornis ornatus), an extremely tiny/rare species of hummingbird, native to S. America & Trinidad. During courtship rituals, males fan their plumes out while hovering in a lyrical side-to-side pendulum motion in front of a female. #birds #biology #wildlife #nature Not Al.

81 526 3041

D. C. Fitzgerald

@dcfitzgerald.bsky.social

5 months ago

Black Heron or Black-Egret (Egretta ardesiaca) engaging in canopy feeding…this is so the heron can see past the surface reflection to spot fish. #nature #birds #wildlife #biology

88 413 2743

D. C. Fitzgerald

@dcfitzgerald.bsky.social

5 months ago

Spotted Fritillary (Melitaea didyma)...found in Eurasia and North Africa...adults like thistles, lavender, knapseeds & oregano. #butterfly #wildlife #nature #biology #photo

41 308 2451

D. C. Fitzgerald

@dcfitzgerald.bsky.social

about 1 month ago

Black-rumped Flameback (also known as the Lesser Goldenbacked Woodpecker, Dinopium benghalense). Indian subcontinent. They can withstand impact forces of tree hammering speeds up to 20 times per second, protecting them from concussions. #birds #biology #nature #wildlife

37 303 2442

D. C. Fitzgerald

@dcfitzgerald.bsky.social

4 months ago

Agami Heron (Agami agami). Mexico & the Amazon Basin. Stealth predators, they crouch motionless on branches or tree roots overhanging water for hours at a time. #birds #nature #wildlife #photo #biology #conservation

31 282 2066

D. C. Fitzgerald

@dcfitzgerald.bsky.social

3 months ago

Pesquet’s Parrot (Psittrichas fulgidus) found in the montane rainforests of New Guinea. The short head feathers have evolved so they don’t mat or look like slobs when eating sticky figs. #birds #biology #wildlife #nature

38 255 1915

D. C. Fitzgerald

@dcfitzgerald.bsky.social

5 months ago

Green Jay (Cyanocorax yncas)…Mexico, Central/South America up to south Texas…omnivores, they take almost everything…insects, fruit, seeds, small animals. They’re Covids so they’re very smart. #birds #wildlife #nature #biology

With a shocking palette that looks like it was painted by a tropical enthusiast, the **Green Jay** is a standout of the brushlands. It sports a brilliant **yellow belly**, a lime-green back, and a vivid blue-and-black head.

Found from South Texas through Central and South America, these birds are as noisy as they are colorful. They are highly social, often traveling in family flocks, and exhibit remarkable intelligence—even using sticks as tools to pry insects from tree bark.

31 175 1664

D. C. Fitzgerald

@dcfitzgerald.bsky.social

about 2 months ago

Black-headed Caique (Pionites melanocephalus). Native to the Amazon basin & northern South America. They usually travel in small gregarious flocks of up to ten individuals, using high-pitched whistles to communicate. #birds #wildlife #biology #nature

The Black-Headed Caique is a small, energetic parrot known for its playful, clown-like personality and striking black head with a white breast.

The Black-Headed Caique (Pionites melanocephalus) is a medium-sized parrot, approximately 23–24 cm (9 inches) long and weighing around 150–170 grams. It has a distinctive black crown, white breast, and colorful plumage with green wings and back, and orange-yellow thighs. There is no sexual dimorphism, meaning males and females look alike

Behavior and Personality
Known as the "clowns of the parrot world," Black-Headed Caiques are highly energetic, inquisitive, and playful.

21 187 1569

D. C. Fitzgerald

@dcfitzgerald.bsky.social

over 1 year ago

Eurasian Eagle-Owl (Bubo bubo) found across much of Eurasia. Females can reach lengths of up to 75 cm- 2.45 ft and weigh between 1.75 to 4.6 kg - 4 to 10 pounds. In trying to identify the eagle-owl the deep orange eyes are a big clue. #owls #birds #nature #wildlife #biology #Photo