It is called the Worm moon because that is when earthworms surface in the warming soil and are eaten by the early birds. At least that was what I assumed, but the Old Farmer’s Almanac also offered this:
However, more research revealed another explanation. In the 1760s, Captain Jonathan Carver visited the Naudowessie (Dakota) and other Native American tribes and wrote that the name Worm Moon refers to a different sort of “worm”—beetle larvae—which begin to emerge from the thawing bark of trees and other winter hideouts at this time.
https://www.almanac.com/content/full-moon-march
Depending upon whether the March moon is before or after the Vernal equinox, it is also called the Lenten Moon, if before the equinox or the Paschal Moon, if after the equinox. The first full moon of Spring determines the date of Easter each year.
Other seasonal related names for this moon are
- Sugar Moon (Ojibwe)-time of year when the sap of sugar maples starts to flow.
- Wind Strong Moon (Pueblo)-refers to the strong, windy days that come at this time of year.
- Sore Eyes Moon (Dakota, Lakota, Assiniboine)-highlights the blinding rays of sunlight that reflect off the melting snow of late winter.
- Eagle Moon, Goose Moon (Algonquin, Cree),
- Crow Comes Back Moon (Northern Ojibwe),
Sugar moon shining bright
a welcome sign for sore eyes tonight
have worms for the returning bird to eat
only they might like that form of treat