Swainson’s Hawk Regurgitating Pellets

Western Montana has been awash in Swainson’s Hawks this summer.  From the Canadian border (Glacier County) to the southern border with Idaho (Beaverhead County) I found them in significantly larger numbers than I have seen in previous summers.  I hope this very unscientific observation is accurate and that it bodes them well as a species because their numbers have been declining to the point where they are listed as a Species of Special Concern in several western states.    1/2000, f/7.1, ISO 500, 500 f/4  I found this handsome juvenile this past week along a county road in Beaverhead County.  At first it was very relaxed and assumed this clenched fist pose that is so typical of many buteo species when they’re at ease and resting.      1/1600, f/7.1, ISO 500, 500 f/4 But soon it began to arch its neck and I recognized that it was about to attempt to expel a pellet.  I had already taken my tc off in anticipation of take-off so I decided to leave it off because so often in the past I’ve missed the falling pellet as it dropped out of frame at the bottom.      1/2000, f/7.1, ISO 500, 500 f/4 Then, with the nictitating membrane pulled over the eye, the bird began to retch. These few images showing pellet ejection may give the viewer the impression that it all happened very quickly.  It didn’t.  From beginning to end the whole process took over four minutes.  During that time there were alternating periods of retching and resting and it didn’t look to be a…

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