Knob-billed Duck

When i see Knob-billed Duck i was excited coz it was my 1st sighting n took 2-3 shots from car. Thanks Vijayendra bhai and Sartaj bhai for identifying the duck from running car. most time i missed good shots so taken very caution n tried to take close shot but he noticed and fly away but m happy with this image.didn't get chance to take side pose.

Canon 600D
Aperture-Priority AE Mode  
f /6.3 || Shutter speed 1/160 || ISO 100(Auto)
White Balance : Cloudy
Tamron 150-600mm 
Sultanpur Wetland,Navsari Outskirt, Gujarat