Table 4. Average yearly detection and occupancy rates for cormorants, egrets, and herons on catfish ponds in the Mississippi Delta.

Detection varied by date, and the resulting range of detection probabilities are shown. These detection rates represent the probability of observing these species on a pond given the pond is being used, and are only representative of the survey methods described within this study.

Year	Cormorants	Egrets	Herons
	Mean Detection (Range)
2015	0.16 (0.03–0.37)	0.10 (0.01–0.17)	0.08 (0.02–0.16)
2016	0.14 (0.02–0.33)	0.08 (0.01–0.14)	0.07 (0.02–0.14)
2017	0.14 (0.02–0.33)	0.12 (0.02–0.21)	0.12 (0.03–0.23)
	Mean Occupancy (SE)
2015	0.74 (0.03)	0.72 (0.07)	0.60 (0.04)
2016	0.70 (0.04)	0.84 (0.04)	0.52 (0.05)
2017	0.79 (0.03)	0.85 (0.04)	0.61 (0.03)