http://www.pima.gov/cmo/sdcp/sdcp2/PO/pygmy.htmlIn 1999, Pima County also funded some of the telemetry work performed by Arizona Game and Fish through a $60,000 contract. Based on preliminary information:
* 11 nest sites were located and monitored and owls at each site were banded
* Nest sizes varied from 2 to 5 babies and at least 16 of 35 fledglings dispersed
* At least 13 owls had transmitters placed on them (including 3 adult males)
* At least 8 juvenile owls were tracked through dispersal
* At least 5 owl mortalities occurred during the survey season
4. Harris/Duncan 1999 Survey Report - During the 1999 survey season (from January to July), Pima County undertook the most comprehensive study effort of the decade through a contract awarded to Harris Environmental Group through a competitive proposal process. Covering over one quarter of a million acres, this search for owls exceeded the scope of all combined efforts during the first five years of surveys conducted by the State before the listing of the pygmy-owl. Pima County also obtained site specific results from the survey effort conducted on numerous future bond projects. After determining where surveys were already being conducted by U.S. Fish and Wildlife, Arizona Game and Fish, the Forest Service, and the Bureau of Land Management, the remaining study area was divided into 9 survey districts and 2,632 call stations were established, under the Pima County contract. To put this in perspective, in 1998, the same team staked out 768 call points. In 1996, Arizona Game and Fish worked from a total of 356 call points. The 1999 effort allowed research to take place in areas that have not been surveyed in the past.
http://www.biologicaldiversity.org/swcbd/species/pygmyowl/index.htmlThe Arizona population of the pygmy-owl formerly occurred in desert and riparian habitats from around the New River north of Phoenix south to the Mexican border. Habitat losses have reduced the range of the species to an area between Tucson and the border. The known population has dropped from 47 birds in 1999 to 18 in 2002 and 2003 likely as a result of development of the last occupied habitat and drought. Some of the pygmy-owl’s most vital Arizona habitat is located in the ironwood forests of northwest Tucson and Marana, an area also coveted by developers and threatened by dozens of construction projects.
no matter what -- there are not a lot of these owls because of the specific habitat they inhabit.
the likelyhood that there subspecies i sprobably large due to the difficulty of each group finding the other -- creating island like environments.