I visited parts of Piney Run Park this morning and this afternoon with several highlights:

Canada Goose  100
Mallard  35
Common Loon  2 ims, I suspected two were summering here but this was the first time I saw both at one time.
Great Blue Heron  2
Great Egret  2
Green Heron  3
Glossy Ibis  2 ims, continue to be seen from White Rock Road
Greater Yellowlegs  3
Ring-billed Gull  4
Forster's Tern  3, one adult in breeding plumage, one molting adult, one 1st-summer variously sitting on the lake together, flying around, or perched on a boat; rare here.
Purple Martin  4, at least, not often seen as a migrant here, and rather late.
Cliff Swallow  2

--
Bob Ringler 
Eldersburg MD