Order: Campylorhynchus brunneicapillus
                Family: 
                Wrens
                 (Troglodytidae)
            
            
| Subspecie | Distribution | 
|---|---|
| sandiegensis | sw California (sw USA) and nw Baja California (nw Mexico) | 
| bryanti | n Baja California (nw Mexico) | 
| affinis | s Baja California (nw Mexico) | 
| seri | Tiburón I. (Gulf of California) | 
| couesi | inland sw and sc USA and n Mexico | 
| brunneicapillus | Sonora to Sinaloa (nw Mexico) | 
| guttatus | c Mexico |