Date: 1/13/18 6:05 pm From: roger freeman <carrotguy55...> Subject: [obol] Re: Bald Eagle attacks Cackling Geese at 1500-2000' altitude
Of course, calling all of these Cackling Goose is presumptuous due to the clear variation in size in Canada and Cackling geese and the distance I was observing at. My call was actually more based on the fact that the eagle appeared significantly larger. Please disregard or discount that declaration of specific *Branta *species.
Still a very cool observation! Roger Freeman
On Sat, Jan 13, 2018 at 5:52 PM, roger freeman <carrotguy55...> wrote:
> While working in my yard (east of Silverton OR) this afternoon about 4 pm, > I heard, then watched about 150 Cackling Geese flying over at an estimated > 1500-2000' altitude. They were in 3 loose flocks of varying sizes and > heading in a southerly direction. Since I don't get geese flying over our > place very often, I stopped and watched. The skies were clear and winds > calm. > > I then spotted an adult Bald Eagle (in the bright evening sunlight, I > could make out the white head) show up a few hundred yards away from the > flying geese. The geese held formation but it was clear the eagle was > positioning for a possible pursuit. As the geese approached a few hundred > meters from the Bald Eagle, the eagle turned towards the geese and started > to pursue from a rear position. The eagle accelerated in and came in > behind the smaller rear group. It wasn't clear if the eagle was flying > higher and possibly making a shallow dive. > > Just before I lost the entire group behind the tree line, I could see the > eagle make contact with one of the geese. I have no idea if it made a > successful kill or not. The whole episode from when I first spotted the > geese was about 60 seconds. > > I am curious if others have observed a relatively high altitude pursuit > from a Bald Eagle. I found this article from 1986 of a similar observation > of a Bald Eagle attacking a large group of flying Snow Geese but the > altitude isn't clear. > https://sora.unm.edu/sites/default/files/journals/jrr/v020n0 > 2/p00075-p00076.pdf > > Roger Freeman > east of Silverton OR >