What are some blue organisms you have photographed?

[eyekosaeder]

Just yesterday I saw this flower: Scilla siberica

I seemingly just forgot about it despite really liking this species (a neighbour had a hazelnut tree with a whole carpet of these underneath). Very blue. Very pretty. :)

[alanyoshioka]

The most surprising blue thing I’ve photographed is the patches of blue on a leafhopper. These are symmetrical, so I imagine they’re a natural variation.

Like @ra_teo, I’ve found a blue snail (Oxychilus sp.)

and blue flies (Calliphoridae).

I also have a blue orchard bee (Osmia lignaria)

and a very pretty blue wasp.

Though I don’t have an observation of my own, I hope someone will share an invertebrate iridovirus.

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Atlantic Blue Crab

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Mud Fiddler Crab

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Blue Fungus Beetle

[shreedave]

Wow! Getting an Indian Roller in flight is not easy!

[naturespotter]

Pukeko

[lmtaylor]

Most of the blue dragons and damsels in my files have already been mentioned, but not this ebony jewelwing (Calopteryx maculata)

Also, it’s true that among terrestrial animals (unlike plants, and unlike aquatic organisms) purple is remarkably hard to find. In my local area the only example I can think of is the iridescence of Columba livia, the feral pigeon.

(Edit: I suppose the question is, what’s your favorite photo you’ve taken of a blue animal? Well, I have a whole heap of mediocre shots of bluets and forktails, so I guess the answer is “none so far, still hoping.” Flighty little guys they are.)

[PdFuenteB]

My fav blue thing that I saw is probably this cobalt blue fungus (Terana coerulea).
The deep blue it produces is so striking that it looks like a color that shouldn’t exist.

https://www.inaturalist.org/observations/259968491
Also, I love forget-me-nots, so I have to add one, but they are so difficult to ID to species level.

https://www.inaturalist.org/observations/159639583

[whistlingduck]

Here are a few of mine:
Back of a female Wood Duck

Island Scrub Jay:

Black-throated Blue Warbler:

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Tricolored Heron

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Sphodres abboti

[erin-816]

Wow - what a gorgeous spider! Thanks for giving me a new one for my hope-to-see-someday list!

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You’re Welcome any time. I see stuff on here everyday that I react by saying to myself " I want to see that".

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Pale Alpine Forget-Me-Not

[Drew_Baxter]

We saw this Brandt’s Cormorant Urile penicillatus at La Jolla, California, in October.

[SixthSeason]

https://www.inaturalist.org/observations/259933298

Blue starfish observed at low tide while camping on the Great Barrier Reef.

[papernautilus]

I’ve been waiting but no one else has posted the blue-footed booby.

[Drew_Baxter]

We saw this booby on the sandy beach to the south of Los Muertos Beach in Puerto Vallarta earlier this month (March 2025).

[GothHobbit]

@lmtaylor

(Edit: I suppose the question is, what’s your favorite photo you’ve taken of a blue animal? Well, I have a whole heap of mediocre shots of bluets and forktails, so I guess the answer is “none so far, still hoping.” Flighty little guys they are.)

That they are. Even so, I love my little neon matchsticks.
I also love that photo of the Ebony Jewelwing. I’ve managed to capture the metallic green of their bodies, but I haven’t managed to document the amazing color-shifting ability, so getting a blue shot has eluded me. Nice job!