Thursday, June 29, 2017

Stages of Adulthood

About halfway through the auto tour at the Sacramento National Wildlife Refuge, we spotted a flock of Cliff Swallows taking a break in the middle of the road.
Cliff Swallow
 This one is an adult with its dark coloring and contrasting white forehead...
Sacramento National Wildlife Refuge California birding hotspot
 And these are juveniles!
Sacramento National Wildlife Refuge California birding hotspot


Sacramento National Wildlife Refuge California birding hotspot
 Their foreheads haven't filled in all the way yet...
Juvenile Cliff Swallow
...and they are stocky, duller in color, and have whitish throats...

How nice of them to sit still for us!


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