The professor and I went out into the forest very early this morning, it was still dark out, but close enough to sunrise... it wasn't that difficult to see. We set up our equipment to take measurements of the electrical currents in the trees.
It turns out that the data regarding the electrical currents in the trees in Viridian Forest supported our hypothesis. It seems that the currents are much stronger in those trees than in the trees I looked up data for! It is more than likely that that could be what attracts the Pikachu to that forest, seeing as they tend to gather where electricity is strongest... but the current in a tree is still very weak... then again, the ample food supply and other resources readily available would contribute... this is very intriguing indeed!
I still don't have an actual comparison for the currents compared to Ilex Forest and Petalburg Woods however. I do have the data taken a couple of years ago, but I would prefer to take them myself, to see if anything has changed. Then again, it would be quite a venture to make, and I do enjoy assisting Professor Oak in the lab... Hm...
While we were out observing, there were quite a few Pikachu out once it got closer to the midday. I managed to get two sketches of them around lunchtime; it would have been nice to have seen more than one at a time, but that would have been dangerous, so I suppose it is a good thing.
This one was trying to reach a fruit in the trees, but I ran out of space!
I saw this one shortly after lunch... it seemed to be interested in the equipment we had set up and seemed to want to investigate it...