21 Utah
In 2023, we had complete survey coverage across the state of Utah (Figure 21.1).
21.1 Utah Statewide: Total
Utah Statewide: Total
We obtained results for Utah Statewide: Total by compiling and jointly analyzing data from 42 strata.
Field technicians completed 256 of 273 planned surveys (94%) in 2023. Technicians conducted 2919 point counts within the 256 surveyed grid cells between May 6 and July 12. They detected 173 bird species, including 10 priority species.
Bird Conservancy estimated densities and population sizes for 221 species that were detected in any year during which surveys were conducted, 16 of which are priority species. The data yielded robust density estimates (CV < 50%) for 124 species.
Bird Conservancy estimated the proportion of 1 km² grid cells occupied (Ψ, Psi) throughout Utah Statewide: Total for 224 species that were detected in any year during which surveys were conducted, 16 of which are priority species. The data yielded robust occupancy estimates (CV < 50%) for 131 species.
21.2 All Other Lands in Utah
All Other Lands in Utah
We obtained results for All Other Lands in Utah by compiling and jointly analyzing data from four strata.
Field technicians completed 92 of 108 planned surveys (85%) in 2023. Technicians conducted 1042 point counts within the 92 surveyed grid cells between May 6 and July 8. They detected 149 bird species, including 6 priority species.
Bird Conservancy estimated densities and population sizes for 197 species that were detected in any year during which surveys were conducted, 13 of which are priority species. The data yielded robust density estimates (CV < 50%) for 85 species.
Bird Conservancy estimated the proportion of 1 km² grid cells occupied (Ψ, Psi) throughout All Other Lands in Utah for 199 species that were detected in any year during which surveys were conducted, 14 of which are priority species. The data yielded robust occupancy estimates (CV < 50%) for 89 species.
21.3 Utah BCR 9
Utah BCR 9: Total
We obtained results for Utah BCR 9: Total by compiling and jointly analyzing data from 17 strata.
Field technicians completed 103 of 109 planned surveys (94%) in 2023. Technicians conducted 1238 point counts within the 103 surveyed grid cells between May 6 and July 1. They detected 123 bird species, including 5 priority species.
Bird Conservancy estimated densities and population sizes for 170 species that were detected in any year during which surveys were conducted, 13 of which are priority species. The data yielded robust density estimates (CV < 50%) for 69 species.
Bird Conservancy estimated the proportion of 1 km² grid cells occupied (Ψ, Psi) throughout Utah BCR 9: Total for 171 species that were detected in any year during which surveys were conducted, 13 of which are priority species. The data yielded robust occupancy estimates (CV < 50%) for 72 species.
All Other Lands in Utah BCR 9
We obtained results for All Other Lands in Utah BCR 9 by compiling and analyzing data from one stratum.
Field technicians completed 35 of 41 planned surveys (85%) in 2023. Technicians conducted 383 point counts within the 35 surveyed grid cells between May 6 and July 1. They detected 106 bird species, including 3 priority species.
Bird Conservancy estimated densities and population sizes for 141 species that were detected in any year during which surveys were conducted, 8 of which are priority species. The data yielded robust density estimates (CV < 50%) for 38 species.
Bird Conservancy estimated the proportion of 1 km² grid cells occupied (Ψ, Psi) throughout All Other Lands in Utah BCR 9 for 141 species that were detected in any year during which surveys were conducted, 8 of which are priority species. The data yielded robust occupancy estimates (CV < 50%) for 41 species.
21.4 Utah BCR 10
Utah BCR 10: Total
We obtained results for Utah BCR 10: Total by compiling and jointly analyzing data from five strata.
Field technicians completed 15 of 17 planned surveys (88%) in 2023. Technicians conducted 174 point counts within the 15 surveyed grid cells between May 18 and July 5. They detected 82 bird species, including 3 priority species.
Bird Conservancy estimated densities and population sizes for 134 species that were detected in any year during which surveys were conducted, 10 of which are priority species. The data yielded robust density estimates (CV < 50%) for 19 species.
Bird Conservancy estimated the proportion of 1 km² grid cells occupied (Ψ, Psi) throughout Utah BCR 10: Total for 136 species that were detected in any year during which surveys were conducted, 10 of which are priority species. The data yielded robust occupancy estimates (CV < 50%) for 21 species.
All Other Lands in Utah BCR 10
We obtained results for All Other Lands in Utah BCR 10 by compiling and analyzing data from one stratum.
Field technicians completed 3 of 5 planned surveys (60%) in 2023. Technicians conducted 26 point counts within the 3 surveyed grid cells between May 18 and June 23. They detected 32 bird species, including 1 priority species.
Bird Conservancy estimated densities and population sizes for 90 species that were detected in any year during which surveys were conducted, 6 of which are priority species. The data yielded robust density estimates (CV < 50%) for 5 species.
Bird Conservancy estimated the proportion of 1 km² grid cells occupied (Ψ, Psi) throughout All Other Lands in Utah BCR 10 for 91 species that were detected in any year during which surveys were conducted, 6 of which are priority species. The data yielded robust occupancy estimates (CV < 50%) for 5 species.
21.5 Utah BCR 16
Utah BCR 16: Total
We obtained results for Utah BCR 16: Total by compiling and jointly analyzing data from 18 strata.
Field technicians completed 122 of 129 planned surveys (95%) in 2023. Technicians conducted 1320 point counts within the 122 surveyed grid cells between May 7 and July 12. They detected 143 bird species, including 5 priority species.
Bird Conservancy estimated densities and population sizes for 195 species that were detected in any year during which surveys were conducted, 11 of which are priority species. The data yielded robust density estimates (CV < 50%) for 109 species.
Bird Conservancy estimated the proportion of 1 km² grid cells occupied (Ψ, Psi) throughout Utah BCR 16: Total for 195 species that were detected in any year during which surveys were conducted, 11 of which are priority species. The data yielded robust occupancy estimates (CV < 50%) for 112 species.
All Other Lands in Utah BCR 16
We obtained results for All Other Lands in Utah BCR 16 by compiling and analyzing data from one stratum.
Field technicians completed 41 of 47 planned surveys (87%) in 2023. Technicians conducted 481 point counts within the 41 surveyed grid cells between May 11 and July 8. They detected 120 bird species, including 4 priority species.
Bird Conservancy estimated densities and population sizes for 163 species that were detected in any year during which surveys were conducted, 8 of which are priority species. The data yielded robust density estimates (CV < 50%) for 54 species.
Bird Conservancy estimated the proportion of 1 km² grid cells occupied (Ψ, Psi) throughout All Other Lands in Utah BCR 16 for 163 species that were detected in any year during which surveys were conducted, 8 of which are priority species. The data yielded robust occupancy estimates (CV < 50%) for 60 species.
21.6 Utah BCR 33
Utah BCR 33: Total
We obtained results for Utah BCR 33: Total by compiling and jointly analyzing data from two strata.
Field technicians completed 16 of 18 planned surveys (89%) in 2023. Technicians conducted 187 point counts within the 16 surveyed grid cells between May 9 and May 19. They detected 66 bird species, including 1 priority species.
Bird Conservancy estimated densities and population sizes for 115 species that were detected in any year during which surveys were conducted, 4 of which are priority species. The data yielded robust density estimates (CV < 50%) for 10 species.
Bird Conservancy estimated the proportion of 1 km² grid cells occupied (Ψ, Psi) throughout Utah BCR 33: Total for 116 species that were detected in any year during which surveys were conducted, 4 of which are priority species. The data yielded robust occupancy estimates (CV < 50%) for 12 species.
All Other Lands in Utah BCR 33
We obtained results for All Other Lands in Utah BCR 33 by compiling and analyzing data from one stratum.
Field technicians completed 13 of 15 planned surveys (87%) in 2023. Technicians conducted 152 point counts within the 13 surveyed grid cells between May 9 and May 19. They detected 57 bird species, including 0 priority species.
Bird Conservancy estimated densities and population sizes for 109 species that were detected in any year during which surveys were conducted, 1 of which are priority species. The data yielded robust density estimates (CV < 50%) for 16 species.
Bird Conservancy estimated the proportion of 1 km² grid cells occupied (Ψ, Psi) throughout All Other Lands in Utah BCR 33 for 110 species that were detected in any year during which surveys were conducted, 1 of which are priority species. The data yielded robust occupancy estimates (CV < 50%) for 18 species.