Common resident throughout Maryland except in the western two counties, where it is replaced by Black-capped Chickadee. Hybrids are readily detected around Sideling Hill, such as on Woodmont Road in Washington County. Rare in Allegany County and Garrett County.
Note the silvery-gray edges to the inner greater coverts and secondaries, lacking the white hockey stick pattern of Black-capped. The white cheek patch grays toward the black nape where the border is rounded, not squared as in Black-capped. Typically has a cleaner edge to the bib and a shorter tail than Black-capped. Song is 3-4 notes versus the 2-note song of Black-capped. Other Black-capped vocalizations are lower and slower.
There are 1,572 records in the project database.
Carolina Chickadee in Montgomery Co., Maryland (3/31/2022). (c) Stephen John Davies, some rights reserved (CC BY-NC). - Stephen John Davies via iNaturalist.
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