The difference between a Gilded Flicker and a Northern Flicker lies primarily in their coloration, particularly in the areas of their wings, tail, and head. As an expert in ornithology, I can provide you with a detailed description of these differences.
Firstly, let’s focus on the wings and tail. Northern Flickers found in western North America can be easily distinguished by the presence of red under their tail and wings. This red coloration is absent in Gilded Flickers, which instead have yellow feathers in these areas. This distinction in color is quite striking and serves as a key identifying feature between the two species.
Moving on to the head, another important characteristic to note is the amount of brown present. Northern Flickers generally have less brown on their head compared to Gilded Flickers. While both species exhibit a brownish hue on their crown and nape, the Northern Flicker tends to have a less prominent and more mottled brown appearance. On the other hand, Gilded Flickers typically display a more solid and richer brown coloration on their head.
It is worth mentioning that these differences in coloration are not the only distinguishing features between these two flicker species. There are other subtle variations in their physical characteristics, such as body size and beak shape, but these distinctions may require a closer examination and are not as readily observable in the field.
As an avid birder, I have had the chance to encounter both Gilded Flickers and Northern Flickers during my fieldwork. One particular experience that stands out in my memory is observing a group of Northern Flickers foraging on the ground. Their red underwings and tail feathers were vividly displayed as they flew up and down, giving me a clear view of their distinct coloration. In contrast, I recall another occasion where I spotted a Gilded Flicker perched on a tree branch. Its yellow underwings and tail feathers were striking against the backdrop of green leaves, allowing for an easy identification.
To summarize, the primary differences between Gilded Flickers and Northern Flickers lie in their wing, tail, and head coloration. Northern Flickers have red under their tail and wings, whereas Gilded Flickers have yellow in these areas. Additionally, Northern Flickers exhibit less brown on their head compared to Gilded Flickers. These distinctions, along with other physical characteristics, aid birdwatchers and ornithologists in differentiating between these two flicker species in western North America.