There is a nice assortment of wildflowers visible from the trails; particularly recommend the northern portion of Blackbird and the Fox trails. The flowers attract quite a few insects, including butterflies (which seem to be in increasing numbers this year). This makes for some interesting photography.
A pair of Eastern Kingbirds have appeared in the field south of the Blackbird Trail for the last week; perhaps they are staying.
Also keep an eye out for fawns; this is the time.