POTD: Empty Nest #3

POTD: Empty Nest #3Empty Nest #3
Bozeman, Montana

More fake eggs–too big for this nest! I’ve noticed that the robin nests around our house always contain a number of strands of sagebrush. I wonder if that is just because it is a convenient source of nest material or if there is an additional advantage, say for parasite control. (I read that sage does help with such things, when taken internally anyway.) Or maybe they just like the smell.