21 January 2022
This morning in my Pittsburgh neighborhood it’s sunny and 9oF. Tomorrow it will be 2oF.
The snow that turned to slush on Wednesday has frozen solid.
It’s so cold that if the air was calm we would see the breath of singing birds.
When the winter wren sang in April (at top) it was far too warm, but the air was just right to see the song of the European blue tit below.
When it’s cold you can see the song. pic.twitter.com/Ot1LEDktPM
— Rembrandt’s R?m ? (@RembrandtsRoom) January 8, 2022
Are any birds singing in your neighborhood today? Can you see their songs?
(photos from Wikimedia Commons, Kate St. John and embedded from Twitter; click on the captions to see the originals)