|Photo courtesy of Tom Grey|
- Black backed spotted with yellow. White rump and white wing patches. Red head, nape and upper breast are very visible. Belly is yellowish. A short white moustache stripe over bill.
- A plaintive mew.
- Drills evenly spaced rows of holes in tree trunk, then “visits” them for the sap and insects caught in it. Especially likes ants.
- In tree cavity near water, lined with wood chips.
- Coniferous and mixed forests.
- CA north to AK.
- Most migrate to lower elevations or move south in winter.