Greeney, H. F., Hough, E. R., Hamilton, C. E., & Wethington, S. M. (2022). Nestling growth and plumage development of the Black-chinned Hummingbird (Archilochus alexandri) in southeastern Arizona. Huitzil Revista Mexicana De Ornitologí­a, 9(2), 35-42. https://doi.org/10.28947/hrmo.2008.9.2.78