Thor Hakonsen wrote:They do in Norway, so I would be very surprised if they don't in Sweden also. But, I'm not quite sure if they will in all populations (?)
Does any of you guys now if that is the case south of the nordic countries ?
Thor Hakonsen wrote:I think I was very clear
In Norway, it seems like in some populations the males does not turn blue for a short period during mating season - but stay in the "normal color" also during breeding. Does anyone know if this also is the case in other countries, or does all breeding males change color in continetal Europe ?
Hope this was clearer
Jan Pröjts wrote:Peter Engelen wrote:Does Rana arvalis in Sweden turn blue for mating?
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