Continued Eastward Range Expansion of Black Phoebes (sayornis Nigricans) in Southernmost Texas Ortiz, Samuel G. ; Gabler, Christopher A. ; Brush, Timothy Abstract Publication: Southwestern Naturalist Pub Date: January 2021 DOI: 10.1894/0038-4909-64.3-4.231 Bibcode: 2021SWNat..64..231O