Lumped Species in the 1966 - 2002 AnalysisWe have taken a conservative approach to summary of population changes in species that have undergone taxonomic changes during the BBS period. Because the only changes that can be made by data managers are geographic in nature (e.g., renaming species where clear geographic distinctions exist), the analysis is not changed for those regions by the name changes. However, by analyzing them in aggregate, we can use all the information from areas where the taxonomy is uncertain. Investigators can extract information for "split" species by viewing the population change summaries at the scale of the geographic species.
Here is a list of the grouped species. The name of each grouped species complex is followed by the component species.
Great Blue Heron Ardea herodias
- Great Blue Heron
- Great White Heron
Mallard Anas platyrhynchos
- Mexican Duck
Red-tailed Hawk Buteo jamaicensis
- Red-tailed Hawk
- Harlan's Hawk
Tufted Titmouse Baeolophus bicolor
- Tufted Titmouse
- Black-crested Titmouse
- Unid. Blk-crest/Tuft Tit
Yellow-rumped Warbler Dendroica coronata
- Myrtle Warbler
- Audubon's Warbler
- Yellow-rumped Warbler
Dark-eyed Junco Junco hyemalis
- Slate-colored Junco
- White-winged Junco
- Oregon Junco
- Gray-headed Junco
- Pink-sided Junco
- unid. Junco subsp
Western/Clark's Grebe Aechmophorus spp.
- Western Grebe
- Clark's Grebe
- Aechmophorus spp
Sapsucker (3 species) Sphyrapicus spp.
- Yellow-bell. Sapsucker Sphyrapicus varius
- Red-naped Sapsucker Sphyrapicus nuchalis
- Red-breasted Sapsucker Sphyrapicus ruber
- unid. Sapsucker
Willow/Alder Flycatcher Empidonax spp.
- Willow Flycatcher Empidonax traillii
- Alder Flycatcher Empidonax alnorum
- Traill's Flycatcher
Pac.-sl./Co. Flycatcher Empidonax spp.
- Pacific-slope Flycatcher
- Cordilleran Flycatcher
- Western Flycatcher Compl
Northern Flicker Colaptes spp.
- Yellow-shafted Flicker
- Red-shafted Flicker