Evaluation of nest site preferences of a nest dismantler, the Hair-crested Drongo (Dicrurus hottentottus) in Dongzhai National Nature Reserve of central China

Table 3 Principal component analysis components (PC) for habitat variables present at real and random nest sites for Dicrurus hottentottus

Variable	PC1	PC2	PC3	PC4	PC5
Basal area	0.87	0.01	0.10	0.01	0.01
Overstory	0.81	−0.11	−0.14	0.24	0.05
Slope	−0.16	0.79	0.15	0.07	0.12
Litter depth	0.07	0.74	0.01	0.40	−0.07
Midstory	0.06	0.65	0.15	−0.05	0.37
Litter	0.46	0.60	0.32	−0.13	0.25
Herb	0.05	−0.25	−0.81	0.20	−0.30
CWD	0.06	0.20	0.79	0.14	−0.25
Wood	−0.55	−0.24	0.56	0.37	0.16
Ground cover	−0.03	0.10	−0.11	0.88	−0.01
Water	−0.17	0.09	−0.15	−0.70	−0.16
Understory	−0.04	0.18	0.02	0.16	0.80
Canopy cover	0.58	0.20	−0.03	−0.01	0.66

ISSN: 2053-7166