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Lark Sparrow

Chondestes grammacus

ML34834211


©
Stephen Fettig
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eBird Checklist S31531919
CA Sacramento, Michigan Bar Road, south of river
Sacramento, California, United States
Search this location, Illustrated Checklist
Latitude and Longitude 38.4924, -121.0479 Map

Age
Unknown
Sex
Unknown
Behaviors
Breeding
Tags

Comments

In many sparrow species, the symmetrically molting tail feathers would suggest an adult (AHY) bird. In Lark Sparrows (LASP), however, some 44% of hatch-year (HY) birds molt all of their tails in the fall during the pre-formative molt (Pyle 1997). Thus in this case, the molting tail does not give us age information.

Observation details

This is an exact count of the ones I identified, but likely an under representation of the actual number present. At one point in time were were 45 on the fence with another 24 on the power line and in the field, although I likely missed hidden in the grass of the field.

Technical Information

Original file size
246KB
Dimensions
864 x 576

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