Tree Clinging

Williamson's Sapsucker

Sphyrapicus thyroideus
Williamson's Sapsucker thumbnail
Length: 9 in. (23 cm )
Large sap wells are excavated in shallow but neat rows on the bark of a tree, and they are usually the first evidence of this sapsucker\s presence. The oozing sap as well as the insects attracted to it serve as a major source of food at some times of the year. The Williamson\'s Sapsucker is found in mountainous conifer forests and also feeds on ants and fruit in different seasons. The nest cavity is excavated in a conifer trunk from low down to almost the canopy. In the winter the females go to more open areas and are seldom found together with males.'

The four-digit banding code is WISA.

Female | Jim Burns

Fir forest

Oak-pine woodland
Bird Sound Type: Buzzing
Sex of Bird: Male
Sonogram Large:
Sonogram Zoom:

View Citation

You may need to edit author's name to meet the style formats, which are in most cases "Last name, First name."

Bibliographic details:

  • Article: Williamson's Sapsucker
  • Author(s): Dr. Biology
  • Publisher: Arizona State University School of Life Sciences Ask A Biologist
  • Site name: ASU - Ask A Biologist
  • Date published: July 13, 2017
  • Date accessed: June 13, 2024
  • Link:

APA Style

Dr. Biology. (2017, July 13). Williamson's Sapsucker. ASU - Ask A Biologist. Retrieved June 13, 2024 from

American Psychological Association. For more info, see

Chicago Manual of Style

Dr. Biology. "Williamson's Sapsucker". ASU - Ask A Biologist. 13 July, 2017.

MLA 2017 Style

Dr. Biology. "Williamson's Sapsucker". ASU - Ask A Biologist. 13 Jul 2017. ASU - Ask A Biologist, Web. 13 Jun 2024.

Modern Language Association, 7th Ed. For more info, see
Green, yellow, orange, and pink leaves
Why do leaves change color in the fall season?

Be Part of
Ask A Biologist

By volunteering, or simply sending us feedback on the site. Scientists, teachers, writers, illustrators, and translators are all important to the program. If you are interested in helping with the website we have a Volunteers page to get the process started.

Donate icon  Contribute


Share to Google Classroom