Birds are warmblooded animals, which means that they maintain their body temperature independent of the environment. However, their often tiny size forces them to adapt, and even work together, when it gets cold outside. New Zealand Birds describes this behavior in one species, the fantail:

“They huddle together in such roosts for warmth, the most dominant birds taking the center positions, forcing the immature and more subordinate to the edges where they are at the mercy of the elements.”

This list is our collection of the cutest bird-cuddling photos. Do you have any photos of this adorable behavior? Post them below, or vote on your favorite!

More info: How do birds keep warm? (h/t: lostateminor, nzbirds)

#1 This Is Not A Caterpillar

This Is Not A Caterpillar

José Luis Rodríguez Report

Rism 11 months ago

Plot twist: this is a rarely seen caterpillar from a very rare species xD

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#2 Tree Swallows Huddle Up With Their Companions

Tree Swallows Huddle Up With Their Companions

Katherine Westover Report

HiyasLeocadio 11 months ago

lovely birds!

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#3 Swallows In A Spring Snowstorm

Swallows In A Spring Snowstorm

Keith Williams Report

JeanneDeaux 11 months ago

Aw, poor little ones...

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#4 A Baby Owl Pack

A Baby Owl Pack

John Hill Report

SheliaMunro 11 months ago

That is adorable

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#5 Superb Fairy Wren Chicks Huddled Together With Their Exhausted Father

Superb Fairy Wren Chicks Huddled Together With Their Exhausted Father

Peter Report

JeanneDeaux 11 months ago

Aw, that's so cute... Hope the father could rest a little before they ask for more attention.

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#6 Cuddle Birds

Cuddle Birds

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annlynettemayo 11 months ago

This makes me feel 'AWE', this is good for the brain, feeling 'AWE' !!

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#7 Birds During Snowstorm

Birds During Snowstorm

newtopwallpapers.com Report

PhebeWatlington 11 months ago

This would make a beautiful poster.

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#8 Napping Goldeneye Chicks

Napping Goldeneye Chicks

Max Waugh Report

FrankBeran 11 months ago

Too cute not to share

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#9 Family

Family

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BonniPBrown 11 months ago

I wish we had pretty birds like this...love the "group" photo.

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#10 Owls Bundled Up On A Cold Morning

Owls Bundled Up On A Cold Morning

Avani Naik Report

MaxineFultz 11 months ago

I just luv owls!

#11 Keeping Warm

Keeping Warm

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#12 Swallows In A Snowstorm

Swallows In A Snowstorm

Keith Williams Report

PhebeWatlington 11 months ago

Wonderful picture!

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#13 Little Family

Little Family

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LauraMullican 11 months ago

Adorable!!!!

#14 Finch Family

Finch Family

arteragazzina.deviantart.com Report

MarlyVenhofen 11 months ago

Boa noite!

#15 Group Of Smooth Billed Anis Huddle Together For Warmth In The Early Morning Breeze

Group Of Smooth Billed Anis Huddle Together For Warmth In The Early Morning Breeze

Rebecca Yale Report

stanleyscout 11 months ago

Poor guys on the ends!

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#16 4 Birds Sleeping Together On A Stick

4 Birds Sleeping Together On A Stick

Arnaud Dorange Report

Rism 11 months ago

This is me and friends in 8hour train