Be-99 pilot reported a track heading deviation after an evasive maneuver to avoid a flock of birds n...

Attributes
ACN	1610604
Time
Date	201901
Local Time Of Day	0601-1200
Place
Locale Reference	ZSE.ARTCC
State Reference	WA
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Beechcraft / Beech Aircraft Corp Undifferentiated or Other Model
Operating Under FAR Part	Part 135
Flight Phase	Cruise
Flight Plan	IFR
Person 1
Function	Captain Single Pilot
Qualification	Flight Crew Flight Instructor Flight Crew Air Transport Pilot (ATP) Flight Crew Instrument Flight Crew Multiengine
Experience	Flight Crew Last 90 Days 122 Flight Crew Total 27163 Flight Crew Type 247
Events
Anomaly	Deviation - Procedural Clearance Deviation - Track / Heading All Types Inflight Event / Encounter Bird / Animal

Narrative:

While flying at 11;000 feet on an IFR flight plan on V23 approximately 30 miles south of btg VOR; I found myself converging on a very large area of many flocks of migrating geese. I made a turn to the left keeping my eye out and on the flocks watching all of them as they passed off the right side of the aircraft inadvertently turning 30 degrees as ATC indicated. I was contacted by ATC of the deviation and realized in my attempt to divert from the geese; I inadvertently flew off course resulting in a deviation of the flight planned clearance route. Upon notification from ATC; I resumed navigation back to V23 keeping an eye to the sky for more geese. The rest of the flight was uneventful.

Original NASA ASRS Text

Title: BE-99 pilot reported a track heading deviation after an evasive maneuver to avoid a flock of birds near BTG VOR.

Narrative: While flying at 11;000 feet on an IFR flight plan on V23 approximately 30 miles south of BTG VOR; I found myself converging on a very large area of many flocks of migrating geese. I made a turn to the left keeping my eye out and on the flocks watching all of them as they passed off the right side of the aircraft inadvertently turning 30 degrees as ATC indicated. I was contacted by ATC of the deviation and realized in my attempt to divert from the geese; I inadvertently flew off course resulting in a deviation of the flight planned clearance route. Upon notification from ATC; I resumed navigation back to V23 keeping an eye to the sky for more geese. The rest of the flight was uneventful.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.

Be-99 pilot reported a track heading deviation after an evasive maneuver to avoid a flock of birds near btg VOR.