These two birds, both White Throated Sparrows look a bit different.

K-3 , Tamron 300mm 2.8 and F 1.7 AF adapter
640 ISO , ƒ8, 1/125s





The stripe and yellow coloured patch are notieably different.

The Fascinating and Complicated Sex Lives of White-throated Sparrows

Just to get you interested.

Within each gender, white-striped birds are more aggressive while tan-striped birds are more nurturing. That seemingly simple generalization is based on a vast amount of research. For many years, Falls and his students at the University of Toronto carried out highly detailed studies of White-throated Sparrows, showing how behavioral differences between the morphs touched every aspect of these birds’ lives.

Todays other photos.

Fox sparrow


Dark eyed Junco

[eaglem]

I seem to be missing shots of the sparrows or is it just me? Damn I should have read the Header more carefully!