Here are some pictures from the walk. Click on them to enlarge them.
Spot the insect on the grass blade.
It is a tiny, newly emerged Orthopteroid (grasshopper). All species hatch from eggs as tiny versions of the adult, but without wings, called nymphs; they grow by moulting (ecdysis) through 4 or more stages (or instars). Reference http://www.field-studies-council.org/publications/pubs/grasshoppers-identification-guide.aspx
Two dogs were swimming after a ball thrown into the small ponds, stirring up the mud. And if they have been treated for fleas, then the pond life insects may also now be wiped out.