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

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

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

^aCorrect On (%) = True On/(True On + False On) × 100
^bCorrect Off (%) = True Off/(True Off + False Off) × 100
^cCorrect Cumulative (%) = (True On + True Off)/(True On + False On + True Off + False Off) × 100
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

ISSN: 2053-7166