What is a Season Summary sheet?
A Season Summary (click link to see an example and also see example below)
reports a set of important nesting statistics that indicate the reproductive
success of the Tree Swallows at your project that year.  It can also include a
narrative or list of situations or events that season that may have influenced
nesting and should be recorded for future reference.  Obviously, Season
Summaries are compiled after the season is completed.

The Season Summary sheet offered here includes the following fields:
  • Boxes and Nesting Attempts:
         Number of boxes available
         Number of Boxes Used
         Percent of Boxes Used
         Number of Nesting Attempts (boxes may have more than one)
  • Eggs:
         First egg date at the project
         Number laid
         Average clutch size
         Clutch Range (from lowest number to highest number of eggs
         Clutch Mode (most common number of eggs)
  • Nestlings:
         Total number of eggs that hatched
         Percent of eggs that hatched
         Causes of egg mortality (takeovers, thrown out, broken, unknown)
         Average brood size (young per nest at hatch)
         Brood Range at hatch (from lowest to highest number of young)
         Brood Mode at hatch (most common number of young)
         Number of living nestlings on day 12
         Average brood at day 12
         Brood Range at day 12
         Brood Mode at day 12
  • Fledging:
         Number of nestlings that fledged
         Percent of eggs laid that fledged
         Percent of nestlings hatched that fledged
         Causes of nestling mortality when known
  • Weather Factors:  
         Brief summary of weather trends during nesting.
  • Other/Remarks:  Whatever else you want to add regarding the season.  
    This could be unusual events or behaviors, different things you tried to
    improve the project, issues you explored or dealt with, etc.






























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Learn About Birds at Tree Swallow Nest Box Projects
Season Summary