Author: Bob Lefebvre
Birding the Foothills
Nested Nests
What, if Anything, is a Hoary Redpoll?
Posted by Bob Lefebvre, Calgary The last two winters have seen huge irruptions of redpolls into the Calgary area, and across much of southern Canada and the northern continental US. This doesn’t happen every year, and it has been difficult to find any Common Redpolls in some recent winters. Finding …
Intergrade Northern Flickers
Northern Flickers, which are common all across North America, occur in two subspecies, Yellow-shafted in the north and east, and Red-shafted in the west. In flight Red-shafted flickers show a salmon-red colour under the wings and tail, whereas the Yellow-shafted show a golden-yellow colour. That seems straightforward enough: red=Red-shafted, yellow=Yellow-shafted. …