Danish mosquitos, the happiest mosquitos on earth?

My first 2 weekends here in DK have been amazing, weather-wise.  Blue skies, few to no clouds and cool, to cold crisp air--but the sun has been out. In the sunshine, I can even feel a bit of warmth :) On these days, we have been leaving a few windows open to let in fresh air and to let out all the paint smells from our weekend painting project.  With all of the open windows, more than a few mosquitos came right on in to take up residence inside the house.   I was initially worried and was chasing them around trying to kill them by clapping my hands together on them (looking like a fool in the process I'm sure).   I didn't want to become easy dinner in the middle of the night.  However, I began to notice that none of these mosquitos were seeking me out, but instead landing on the walls and just sitting there..sitting there for days in fact (though I think this mosquito must have just died). At this point, I didn't care what they were doing as long as it continued to not involve me.

I find mosquitos to be evil looking, and even more so up close 

While in Texas, I was sought out by the local mosquitos and even spotted the infamous Dengue-fever- carrying Asian Tiger mosquito landing on my arm (true story--in the month of August, there were 2 reported cases of Dengue fever in Tarrant county)  Since moving to Denmark, I have not been bitten once.  Not one time!  I seem to be invisible to them.  I can walk past 2 hovering baddies and they don't seem to notice me.  I don't think Ed has been bitten either. (ever check verb conjugations in your own language? i do--apparently 'has been bit' is not correct :)   I just do not understand it...They are still out and about so they are not completely dead yet.  I looked at a dead one to make sure it was actually a mosquito-and it was, stinger and all.  Is it our processed-food filled American blood? haha  I searched google for an answer...and the closest thing to an answer I could find was that 'they hibernate'.  Hibernation doesn't really seem like an option for a bug with a lifespan of a few weeks. It was actually quite 'warm' out on many of the days so I wouldn't consider this optimal 'hibernation' weather....

Anyway, I am definitely not complaining-just curious.  Anyone else have an experience with non-biting Danish mosquitos?