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• Other portions of the area feature dense weedy vegetation that is at least two feet in height, effectively precluding utilization. • The only refugia observed with any potential to support burrowing owls are a handful of plastic culverts along the margins of the survey area, and they are at best marginal for the species. All were examined directly, and no indication of burrowing owl presence was observed. Regarding the general breeding bird survey, the southern WMU FU-13 area provides potential nesting habitat for only a very limited number of species. Virtually no birds were observed there, and no breeding bird behavior or other indication of the presence of active nests was observed. Gull survey Methods The survey was conducted from the high vantage point in the southern portion of the site where no active landfill activities are currently taking place, and most previous gull surveys by WRA have been conducted (Figure 1). Nearly all of the landfill property was visible from this area, including the active face located approximately 0.5 mile to the north. Observations were made using binoculars, a spotting scope (with 60x zooming capability) as well as the naked eye. The active face and other portions of the landfill were observed continuously from 10:10 AM to 12:10 PM, with the primary goal of enumerating and identifying to species any gulls present. All wildlife species observed at the landfill during the survey were noted. Results and discussion No gulls were observed throughout the survey, neither in association with the landfill or simply flying over the site. Five to ten blackbirds (red-winged [Agelaius phoeniceus] and/or Brewer's [Euphagus cyanocephalus]) were loafing and foraging on the ground near the active face throughout the observation period. A pair of common ravens (Corvus corax) was also observed in the immediate vicinity of the active face. Swainson's hawk nesting survey Swainson's hawk is listed as Threatened under the California Endangered Species Act and is a U.S. Fish and Wildlife Service Bird of Conservation Concern. This species is a summer (breeding) resident in California's Central Valley, and winters primarily in South America. Nesting occurs in trees, and sites typically used include the edge of bands of riparian vegetation, isolated patches of oak woodland, Ione trees, and also planted and natural trees associated with roads and farmyards and in adjacent urban residential areas. Foraging occurs in open areas, including grasslands, open woodlands, and agricultural lands. While breeding, adults feed primarily on rodents (and other vertebrates); large insects (e.g., grasshoppers, dragonflies) comprise most of the diet during the remainder of the year. The greater breeding season occurs from April through July. According to CDFW's Natural Diversity Database, there are several documented Swainson's hawk nesting occurrences within 2.0 miles of the landfill, the nearest being approximately 0.1 mile north of its eastern portion, and most recently used in 2002. Ebird.com also shows 3