Funny you should mention the ‘rare’ designation in eBird for Ruby-crowned Kinglet. I had one visiting at my suet and peanut feeders for all of January this year and I was submitting eBird reports for it nearly every day, until the last day of January when I last saw the bird.
The very next day, February 1st, the eBird ‘rare bird alert’ email began to list Ruby-crowned Kinglet reports. I suspect that the ‘rare’ tag had something to do with the month – perhaps sightings from February and March are few enough that eBird flags them as ‘rare’ during those months?
Do any of our reviewers know if this is how eBird works in this case of a bird that is common during some months and not during others?
From: Gina Nichol
Sent: Wednesday, March 24, 2021 11:06 AM
To: posting list
Subject: [CT Birds] 3/24/21 - Branford, Lake Saltonstall -- Ruby-crowned Kinglet, Winter Wrens
Lots of spring song this morning at Lake Saltonstall. Two Ruby-crowned
Kinglets (ebird says rare?), 4 Winter Wrens in the forest, and 4 Field
Sparrows singing in the powerline. Eastern Phoebe noticeably absent.
Gina Beebe Nichol
Sunrise Birding LLC
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