Layer Estimates:

Layer: Breeding Bird Atlas Block (ID:0)
Count: 5337
Extent:

XMin: 105030.015
YMin: 4480222.9983
XMax: 765033.7264
YMax: 4990222.1466
Spatial Reference: 26918 (26918)

Layer: BBA_2000_05 (ID:2)
Count: 519570

Layer: BBA_1980_85 (ID:1)
Count: 361582