Table 2. Comparison of the number of unidentified species using two counting methods (ground and aircraft) (1); mean ± standard error of ground counts (2); 95% confidence intervals of ground counts (3); mean ± standard error of aircraft counts (4); 95% confidence intervals of aircraft counts (5); P value (6).

Genus (1)	Ground		Aircraft		P value (6)
	Mean ± SE (2)	95% CI (3)	Mean ± SE (4)	95% CI (5)
All species	1,194 ± 466.11	409–2,215	517 ± 151.83	256–846	0.192
Anatini	80 ± 30.97	26–146	277 ± 56.77	163–385	0.012
Aythya sp.	3,392 ± 1,110.03	1,452–5,759	1,075 ± 387.28	387–1,890	0.064
Cygnus sp.	111 ± 40.17	38–195	198 ± 85.76	59–387	0.454