Fieldwork Kicks Off

Project Phoebe’s fieldwork begin a few weeks ago and is off to a great start! Our team members have been out looking for breeding pairs of Phoebes and new nests all over Davis, Woodland, West Sacramento, and more. We have found lots of old mud cup nests, which may be used again this year. Constructing a mud nest is an immense amount of work–the birds bring back hundreds of clumps of mud to construct their nest and line the inside with a layer of fine grasses. To avoid doing all of this leg work, some birds reuse old nests from previous years!

We think that breeding activity may have been delayed by all of the rain. For most of much, the birds were quiet and we weren’t seeing signs of nest construction of renovation. Last week, that all changed! We now have several pairs attending nests and today we found our first tiny white eggs in Davis.

– Sage

Globs of mud form two cup shapes on a wooden ledge. There is a plank to one side and a roof above. The nests have have some green patches.
A full mud cup nest (right) and partially constructed cup (left) found at Cache Creek Preserve. These birds seem to have used some algae in their nest–see the green patches!
Jacob, wearing a yellow vest, walks along a dirt path with grassy fields to either side and the city skyline faintly visible in the distance.
Jacob looking for Phoebes along the American River Parkway in Sacramento.
Globs of mud form a cup shape, which is plastered on painted concrete. The nest is about 2/3 the length of a mechanical pencil held up next to it.
An old nest found at South Fork Preserve, with a pencil for scale. Nobody seems to be using this nest so far this year!
Ian stands in a pond holding a mirror on a pole up under the dock.
Ian using a mirror on a pole to peek inside a nest at Cache Creek. All our activities have been approved by the Preserve–to minimize disturbance, please do not leave the trails to find nests yourself!

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