You can use it for research or reference. To access the current information, please visit NatureCounts - The State of Canada’s Birds (external link).
The Atlas of the Breeding Birds of Ontario provides the only data for assessing the status of this species in Canada, although these data only cover the time between the two Atlas periods. Atlas results indicate a large increase in detection rates for Tufted Titmouse between Atlas periods (>300%). Although detection rate does not equate directly to abundance, a change of this magnitude likely indicates a significant increase in population. Still primarily confined in Ontario to the Carolinian region, it appears that some range expansion also occurred between the two Atlas periods (Read 2007). Data from the Breeding Bird Survey (BBS) are too few to allow a reliable estimation of trend for Canada. However, BBS results from throughout North America indicate an increase in population at the continental level since 1970, most notably in regions adjacent to southern Ontario and Quebec. Though the continental BBS results include data on both the Tufted Titmouse and the Black-crested Titmouse, which breeds in Oklahoma, Texas and northeastern Mexico (Patten and Smith-Patten 2008), results from the northeastern States, where the Black-crested does not occur, clearly show large population increases (Sauer et al. 2014).
Additional information on: Atlas of the Breeding Birds of Ontario
Additional information on: Breeding Bird Survey in North America (BBS) - U.S. analyses
