hmartin

Another record shot of the 2 black necked (?) grebes at TBT today. At a distance the apparent structural differences in the bills of these 2 birds suggested that the right hand bird might be Slavonian. However, on closer inspection, the base of the bill of this bird either has a growth, or something wrapped around it, resulting in apparent deformity. The steep forehead, and the pattern of black on the cheeks of this bird, are more suggestive of black necked. Finally, these two birds were engaging in short courtship displays.