The area is well know among birders because of the variety of hummingbird species (as many as 15) seen in the area as well as the dozens of southwestern specialties such as Apache pine, Chihuahua pine, ridge-nosed rattlesnake, lesser long-nosed bat and elegant trogon.
Pinus radiata | Pinus contorta | Picea engelmannii | Pinus nigra | Pinus strobus | Pinus leiophylla | Pinus engelmannii | Pinus brutia | Quercus engelmannii | Pinus taeda | Pinus tabuliformis | ''Pinus'' subgenus ''Strobus'' | pinus radiata | Pinus pseudostrobus | Pinus palustris | Pinus massoniana | Pinus kesiya | Pinus glabra | ''Pinus elliottii'' var. ''densa'' | Pinus douglasiana | ''Pinus brutia'' on the mountains near Aleppo | Engelmann Oak (''Quercus engelmannii'') |
Host trees in the United States include primarily P. taeda, P. echinata, P. elliottii, P. virginiana, P. rigida, P. palustris, P. serotina, P. pungens and P. strobes, P. ponderosa, P. engelmannii and P. leiophylla.