bell jetranger flying at burlington vt

Reg.:N67908
United States
DB flags:LADD
Type:B06
1995 BELL 206 JetRanger
USDA APHIS WS
Type Desc.:H1T
Squawk:n

went north from burlington to canadian border and then turned back to burlington

now heading east towards morrisville vt

who is that? is that a military surplus helo? or a pest control helo from USDA?