We went on an automobile caravan field trip with fellow members of the Rochester Birding Association in mid-January (each with a hand-held two-way radio). It was one of those winter overcast days so common here on the Great Lakes. These trips are always a bit frustrating for us bird photographers because the true birders are happy to spot with binoculars and high-power spotting scopes. In contrast, I’m limited to my 100-400mm auto-focus lens, which extends to 560mm with the 1.4X tele-converter (without auto-focusing). The result is I get far fewer bird opportunities.
As we drove down a farm road someone spotted a flock of birds high in the trees so we all pulled over. Shortly afterwards one person announced that it was a group of Red Crossbills feeding, with a few Pine Siskins mingling among them. Female Crossbills have no red, instead consisting mostly of olive-green. Found mostly across southern Canada Red Crossbills fan out to the Northwest Territories and into Alaska. They wander irregularly, depending on the availability of cone crops. What we saw was an irruption into the northern U.S.; sometimes they fly to the deep south. Their population has been stable over the past several decades.
Since cloudy skies reflect more light than blue-skies I over-exposed by +2/3 to minimize silhouetting. The settings for the shot below are: 1/500 sec. @ f / 11, ISO 500.