Table 1. Correlations between bird numbers and years and between plots.

Correlations in capture and observation rates of guilds across years and between plots. Guilds follow Terborgh et al. (1990). P-values are given without correction for multiple comparisons.

	Across years				Betweeen plots
Group	Harpia		Puma
	r	P <	r	P <	r	P <
Captures
All species combined	−0.83	0.001	−0.77	0.002	0.90	0.001
Mixed-species flocks	−0.59	0.03	−0.50	0.07	0.57	0.04
Arboreal insectivores	−0.76	0.002	−0.60	0.03	0.61	0.03
Gleaning	−0.69	0.006	−0.60	0.03	0.60	0.03
Sallying	−0.71	0.005	−0.39	0.17	0.47	0.09
Dead leaves	−0.43	0.13	−0.77	0.002	0.68	0.01
Terrestrial insectivores	−0.76	0.002	−0.82	0.001	0.92	0.001
Army-ant followers	−0.53	0.05	−0.50	0.07	0.35	0.21
Arboreal frugivores	−0.59	0.003	−0.60	0.03	0.55	0.04
Arboreal omnivores	−0.25	0.39	0.27	0.35	−0.01	0.97
Nectarivores	−0.56	0.04	−0.52	0.06	0.20	0.49
Observations
All species combined	−0.90	0.003	−0.93	0.001	0.93	0.001
Understory flocks	−0.72	0.05	−0.78	0.03	0.83	0.01
Canopy flocks	−0.81	0.02	−0.92	0.001	0.77	0.03
Army-ant followers	−0.64	0.08	−0.69	0.06	0.46	0.25
Gleaning insectivores	−0.83	0.01	−0.86	0.01	0.90	0.002
Sallying insectivores	−0.93	0.001	−0.91	0.002	0.93	0.001
Terrestrial insectivores	−0.71	0.05	−0.97	0.001	0.80	0.02
Bark insectivores	−0.80	0.02	−0.55	0.16	0.67	0.07
Dead leaf foragers	−0.52	0.18	−0.81	0.02	0.83	0.01
Arboreal omnivores	−0.85	0.007	−0.85	0.008	0.78	0.02
Arboreal frugivores	−0.82	0.012	−0.96	0.001	0.81	0.13
Terrestrial frugivores	−0.16	0.70	0.22	0.60	0.35	0.39
Arboreal granivores	−0.68	0.06	−0.82	0.013	0.75	0.03
Terrestrial granivores	−0.25	0.55	−0.54	0.16	0.64	0.09
Nectarivores	−0.68	0.06	−0.63	0.09	0.68	0.06