Don't forget that the blackberries should be in bloom up there by now. The pollen from it is a dark greyish brown color. Only way to be sure though is to collect a sample and ID it under microscope.

I wouldn't think honeysuckle would be a dark pollen though. Looking at our plants (which they ignore, vining type), it's a deeper muddy yellow. But who knows. Bush style may very well be brown.. Take some flowers and rub it [the pollen] on a tissue, see what color it is.