Habitat to review
Look at coastal sage scrub and adjacent connected vegetation within the listed subspecies’ range. Habitat boundaries and proposed access routes are useful starting information.
Southern California · Baja California
Polioptila californica californica
A year-round resident of coastal sage scrub.
A coastal sage scrub reference for project teams working in Southern California.
Federal ESA · ThreatenedCoastal California subspecies
For project teams
Look at coastal sage scrub and adjacent connected vegetation within the listed subspecies’ range. Habitat boundaries and proposed access routes are useful starting information.
A resident bird with nesting concentrated in spring. USFWS describes a broader breeding season from late February into early August; survey scheduling must follow the applicable protocol.
Bring a location map, vegetation information, work footprint, schedule, and any existing habitat conservation plan coverage. Confirm the qualified surveyor, authorization, and applicable protocol before booking fieldwork.
Habitat and seasonal context: USFWS species account. Seasonal activity is not a survey protocol.
Listing & scope
The threatened listing applies to Polioptila californica californica. This page is a planning reference and does not represent an offer of species-specific permitted surveys.
Reviewed September 23, 2026. Current federal wildlife list.
Use current agency instructions for a specific project. A reference page does not establish presence, clearance, or authorization.
Start with the site
Share the location, proposed activity, and schedule so we can discuss the appropriate next step.