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Table 7 Success of the best-fit model for determining nest attentiveness of Common Terns on Skimmer Island

From: Assessing nest attentiveness of Common Terns via video cameras and temperature loggers

Time of day Duration bin (min) True On False On True Off False Off Correct On (%)a Correct Off (%)b Correct Cumulative (%)c
Morning < 4 3 66 0 0 4.35 NA 4.35
4‒9 17 5 0 0 77.27 NA 77.27
10‒29 94 39 0 0 70.68 NA 70.68
30‒59 201 27 0 0 88.16 NA 88.16
60+ 6214 317 0 76 95.15 100 94.05
Peak < 4 10 51 0 0 16.39 NA 16.39
4‒9 27 24 0 0 52.94 NA 52.94
10‒29 68 16 0 0 80.95 NA 80.95
30‒59 165 45 0 0 78.57 NA 78.57
60+ 3895 109 0 3 97.28 100 97.20
Cooling < 4 70 255 0 0 21.54 NA 21.54
4‒9 250 187 0 0 57.21 NA 57.21
10‒29 321 162 0 0 66.46 NA 66.46
30‒59 974 20 0 0 97.99 NA 97.99
60+ 4038 670 0 0 85.77 NA 85.77
Night < 4 0 0 7 0 NA 100 100.00
4‒9 0 0 6 6 NA 50 50.00
10‒29 0 0 0 86 NA 0 0.00
30‒59 0 0 0 88 NA 0 0.00
60+ 175 18 8825 1618 90.67 85 84.62
  1. aCorrect On (%) = True On/(True On + False On) × 100
  2. bCorrect Off (%) = True Off/(True Off + False Off) × 100
  3. cCorrect Cumulative (%) = (True On + True Off)/(True On + False On + True Off + False Off) × 100
  4. The success of the best-fit model for determining nest attentiveness status of adult Common Terns during the breeding season on Skimmer Island by time of day. Nest attentiveness status was compared against paired video data to determine accuracy, allowing classifications of True On (bird was correctly assigned as on the nest), False On (bird was assigned as on the nest but was actually off the nest), True Off (bird was correctly assigned as off the nest), and False Off (bird was assigned as off the nest but was actually on the nest). Status determinations occurred at randomly selected minute(s) during a bout