We examined habitat preferences (river versus pond) of great horned owls (Bubo virginianus), eastern screech-owls (Megascops asio), elf owls, lesser nighthawks, common poorwills (Phalaenoptilus nuttallii), and common pauraques (Nyctidromus albicollis) by determining presence and absence for each species at each of the 19 sites (evaluated for each species using a two by two chi-square test).
Of the five species of nightjars on Galvan Ranch, common poorwills and lesser nighthawks were detected most often.
In contrast to lesser nighthawks, which occurred in all but two study sites, common nighthawks were only at two sites and in low numbers.