House wren



House wren on the hunt. Rondeau Provincial Park, July 14, 2023.
Troglodytes aedon.
For House Wren eggs, temperature inside the nest box can be critical to survival. If a sun-drenched nest box warms above about 106 degrees Fahrenheit for an hour, the eggs will begin to die. If a cold snap chills a nest below about 65 degrees Fahrenheit for more than a day it can also doom the eggs.
source -Cornell Lab of Ornithology

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