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Gray Tree Frog

Hyla versicolor or chrysoscelis


The two species, H. versicolor & H. chrysoscelis, are virtually indistinguishable, the only readily noticeable difference is their calls - H. chrysoscelis has a shorter, faster call. Also referred to as the North American Tree Frog, Gray tree frogs change color slowly and may be found in gray, green, olive, or many hues of these colors depending on temperature and the substrate they are sitting on. They feed on small insects and spiders. Gray tree frogs hibernate on land. They produce glycerol, an antifreeze used by some insects to protect cells during the freezing process and can survive temperatures as low as 21 F (-6 C) for several days.


Native to the eastern U.S. and southeastern Canada. Forested areas, swamps. Mostly nocturnal.

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25 Comments (1–25)

Caleb Steindel
Caleb Steindel 10 years ago

looks like jack climbing up the beanstalk; or in this case, the ledge.
or maybe it's the giant, on second thought :)

Small Wonders
Small Wonders 11 years ago

Thank you so much Karen - Your PN blog posts are always a pleasure to read :)

KarenL 11 years ago

Congratulations Kim, this awesome spotting is featured in the Project Noah today, which is on "Masters of Disguise"!

BrandonBlount 11 years ago

:-D Same here, the fiesta mix never gets old! Superb for rock or even container gardening. (happy flowers bring happy animals to visit).

Small Wonders
Small Wonders 11 years ago

Thanks Brandon! Moss rose is also one of my favorites, especially the fiesta mix... Everyday brings a different color!

BrandonBlount 11 years ago

He looks like he's ready for the "all you can eat" buffet! Super cool photos and spotting, also like the moss rose you have planted within the rock garden! It's one of my all time favorite annual garden plants.

Small Wonders
Small Wonders 11 years ago

Thank you janson ;)

Small Wonders
Small Wonders 11 years ago

Thanks Karen :)

KarenL 11 years ago


Small Wonders
Small Wonders 11 years ago

Thank you everyone for all of the nice comments!!
and thanks again Project Noah for the SOD - what an honor!

Blogie 11 years ago

Congrats on the SOTD! Gotta love the 1st shot! :)

Wild Things
Wild Things 11 years ago

Great Description, thanks for the information. Congratulations!

Gerardo Aizpuru
Gerardo Aizpuru 11 years ago

Wonderful shots

Small Wonders
Small Wonders 11 years ago

wow! Thank you so much!!

achmmad 11 years ago

Very beautiful and congratulation!

Apple 11 years ago

@Small Wonders, congrats! Nice to see some Grand Rapids wildlife recognized.

Yasser 11 years ago

Congratulations! This adorable tree frog was selected as Spotting of the Day!

"Gray tree frogs produce glycerol as an antifreeze when hibernating in the winter. Apparently, they also do pull-ups to get in shape for the summer, as you can clearly see in this Spotting of the Day!"


Small Wonders
Small Wonders 11 years ago

Thank you Mary!

MaryEvans2 11 years ago

Beautiful capture and spotting - looks like he is doing chin-ups!

Small Wonders
Small Wonders 12 years ago

Thank you mdwildlife - This frog was quite the poser :)

mdwildlife 12 years ago

That photo actually made me laugh. What a great expression. Thanks for sharing

Small Wonders
Small Wonders 12 years ago

Thank you for your comments!

alicelongmartin 12 years ago

A real cutie!

Mark Ridgway
Mark Ridgway 12 years ago

Amazing coloured frog. Looks quite 'solid' for climbing trees though :)

AnnvanWijgerden 12 years ago

*Super-favorite* Brilliant shot!

Small Wonders
Spotted by
Small Wonders

Grand Rapids, Michigan, USA

Spotted on Jul 11, 2011
Submitted on Dec 6, 2011

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