Photos by Barry Wallace
Every day for a week now there has been at least a half dozen White-throated Sparrows below the Niger seed feeder in the backyard. They are expected to migrate through at this time of year and they are right on schedule. What is a little different is that instead of seeing mostly the white-striped form or morph, we are getting mostly the tan-striped form or morph. This has not happened before - never. In the photo at top, there is a tan-striped type of the White-throated Sparrow in the rear, while the bird in front is a White-crowned Sparrow. Below that photo is a photo of a white-striped type of the White-throated Sparrow. Year after year I'm sure we always see more of the white-striped type during migrations and it seems the white form is generally dominate over the tan form. A breeding pair usually contains one bird from each morph, either a white male and a tan female, or a tan male and a white female. It matters not however how many there are of each type, as all sparrows are more than welcome in our backyard.
Please comment if you wish.