Hyperactive butterfly = bad photos. Riparian area, so willows, oaks and oats. Tailed; perhaps a Satyrium? Coppery above.
If this is an Acmon Blue, she is the eldest and sole survivor in the park. Did not see any others there today.
On Italian thistle.
Two babies in nest - parents feeding them. Caution -- there are a few icky photos that are mercifully blurry.