I tried to capture the density of aphids flying off around the tree in this photo.
The evenly spaced, winged Sycamore aphids (Drepanosiphum platanoidis)
A fledgling begging for food.
The adult cuts the caterpillar in half before feeding the fledgling.
This young one had caught a caterpillar on its own.You can watch one of the adults foraging and the aphids flying off here.