During the 2021 spring migration, volunteers worked in teams three mornings per week in April and May to survey an area of downtown St. Louis for dead or injured birds. The survey focused on 26 buildings, although data on any dead or injured bird encountered in that area during the survey period was recorded. The graph below illustrates the numbers of dead or injured birds found throughout the survey period.
Some of the warblers that were found dead during the spring surveys. Many of these species fly through St. Louis as they head towards their breeding grounds north of our region. Forty-five different species of birds were found during our spring BirdSafeSTL surveys.
Top 5 Species Found
