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Table 5 Number of nest attempts, reproductive outcome and cause of complete nest failure for Falco tinnunculus in Vienna, Austria 2010–2012

From: Hard times in the city – attractive nest sites but insufficient food supply lead to low reproduction rates in a bird of prey

   Reproductive outcome Time of nest failure Cause of nest failure
Year Nest attempts Success (%) Failure (%) Egg stage Nestling stage Abandoned Predation# Other
2010 36 21 (58%) 15 (42%) 11 4 5 4 6
2011 52 36 (69%) 16 (31%) 14 2 4 6 6
2012 69 48 (70%) 21 (30%) 18 3 6 4 11
Total 157 105 (67%) 52 (33%) 43 9 15 14 23
  1. Note: ‘#’ based on confirmed predation. If the predation event was not directly observed and the predator not identified, nest failure is assigned to other.