<< Previous Next >>

Blue(ish) frog

Blue(ish) frog
Photo Information
Copyright: Jacob van der Weele (Bufo) Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 404 W: 69 N: 951] (4247)
Genre: Animals
Medium: Color
Date Taken: 2008-03-02
Categories: Amphibians
Exposure: f/14.0, 1/125 seconds
Details: (Fill) Flash: Yes
More Photo Info: [view]
Photo Version: Original Version
Date Submitted: 2008-03-04 4:29
Viewed: 4268
Points: 30
[Note Guidelines] Photographer's Note
Some people might know that I have been searching for these blue froggies for years in a row. Last week I spend every day a couple of hours looking for them. Sunday was THE day. Moderate temperatures and no wind. It was only this day I found rather blue frogs. The male of the Moorfrog Rana arvalis turns blue in the mating period. I haven't discovered how it exactly works, but it has to do with oxygen in the skin. It is only for a couple of days these male frog turn blue and this bright. It is sometimes only for one evening. It is the trick to be in the right place on the right time. This year I was finally lucky...:-)

horia, cicindela, messenger1, lise, matatur, meyerd, Jamesp, Argus, boreocypriensis, bahadir has marked this note useful
Only registered TrekNature members may rate photo notes.
Add Critique [Critiquing Guidelines] 
Only registered TrekNature members may write critiques.
ThreadThread Starter Messages Updated
To Jamesp: low povBufo 1 03-06 12:25
To matatur: blue colourBufo 2 03-06 04:20
You must be logged in to start a discussion.

Critiques [Translate]

  • Great 
  • joey Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 1739 W: 224 N: 6872] (24909)
  • [2008-03-04 5:29]

Nice shot of these mating frogs!
I wonder why he turns blue? Maybe the blueist male gets more females or something.
The low-down POV is very effective.
Great clarity.
Superb eye-contact.
Congrats on finding the blue frog after so long :-)
Well done,

  • Great 
  • horia Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 2158 W: 224 N: 4749] (16656)
  • [2008-03-04 7:14]

Hi Jacob

AAhhhh...you found them!!! Congrats!
I've been looking to photograph the arvalis while blue in the mating period, too...i will definitely try this weekend or next week again if the weather will look a bit better. I just hope i have of window of opportunity of more than just an evening... :(
I see this was taken two days ago...how were the temperatures there?

Anyway, it's really a splendid result!
The blue of the male's skin is really vibrant and so well shown by your excellent flash work!
Also, it makes such a great contrast with the regular colors - shown on the female here - and so it works for scientific reasons, too.
Very sharp details and excellent work with the DOF here - to include both of them in such a good focus.
Very well exposed and presented!
Again...big congratulations, my friend! Wish me luck now ;)


Hi Jacob,

'Turning blue' fits to your frogs doublewise, in manner and in apparence. The specimen seems kind of relieved. The composition, POV and details are quite good.


Hello Jacob!
I am waiting, and waiting, and STILL waiting for the spring in Lodz, and for possibility to start adventure with taking pictures of some amphibians - including Rana arvalis. But as I see I will wait some time more because the weather is not very optimistic as for now here in Poland...

And here we are in your gallery with possibility to watch this year frogs! A very nice capture of "blue" frog in amplexus. Good sharpness and details, I like also low POV.
All the best from cold Lodz!

Congratulations, Jacob - your persistence paid off. Great sharpness and vivid colors and textures, plus an interesting and informative note. Well done.

Wonderful shot. Great POV with perfect sharpness, superb colour and details on this couple!
Best wishes,

  • Great 
  • pvb Gold Star Critiquer/Silver Workshop Editor/Gold Note Writer [C: 385 W: 16 N: 531] (1981)
  • [2008-03-04 11:10]

Hi Jacob,
Van harte gefeliciteerd.
Je lange wachten is eindelijk omgezet in een prachtig plaatje.
Ik wist niets van het blauw worden, dus dankzij TN weer iets geleerd.
Mooie diepte en goede scherpte om de kop en de reflectie van het blauw in het water is een bonus.
gr Paula

Hallo Jacob,

Mooi die Heidekikkers, ik zoek ze ook nog en ook nog steeds niet zo gevonden.
Toch er maar eens op uit.

groet Gert

  • Great 
  • lise Gold Star Critiquer/Silver Workshop Editor [C: 169 W: 48 N: 548] (2877)
  • [2008-03-04 17:55]

Hi Jacob,
Congratulations on finding these rare frogs! Great capture and amazing sharpness, lovely natural colours.

A good capture of this rarely seen phenomenon, a pair of Rana arvalis in "amplexus" Jacob, some of the TN followers might not be familiar with this term, but in "mating" a transfer of sperm from male to female is the rule while in amplexus, male just holds the female, as in your shot, while releasing its sperm into the water, the tandemly released eggs of the female are fertilized in the water.
TFS for sharing this natural behavior with us my friend.

Hi Jacob,

of course Bufo had to show some amphibians. But this picture is spectacular, maybe not on first sight but certainly at closer scrutiny. I've heard of blue frogs, but this...And you have it all, composition, DOF, POV etc. Truly marvellous, this portrait of a couple.

Best regards

  • Great 
  • Jamesp Gold Star Critiquer/Gold Note Writer [C: 1369 W: 9 N: 6334] (18906)
  • [2008-03-05 22:43]
  • [+]

Hi Jacob

Excellent shot - great composition and spot-on focus. The light here is just winderful. How did you manage to get such a low POV?



  • Great 
  • Argus Gold Star Critiquer/Gold Star Workshop Editor/Gold Note Writer [C: 5038 W: 260 N: 15594] (50626)
  • [2008-03-06 2:38]

Hello Jacob,
I see it's time to look for these!
This is an excellent capture of a pair of mating Moor Frogs, the cyanosis-like blue of the male being very striking here. Nice low POV and excellent sharpness and use of flash without distracting reflections.
On 19th April we are going to Mallorca and one thought was to try to find the Mallorcan Midwife Toad, a protected endemic species found in the mountains of the north of the island, but this may be difficult!

Hi Jacop,
What a beautiful amplexus my friend! This is not only perfect capture! it is also an important document! TFS friend!


Hi Jacop,
What a lovely action shot of the Moorfog:) Splendid! I observed the amplexus of Bufo species in an interesting shape (in group). But this is very different in coloration. TFS. Regards. Bahadır

Calibration Check