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Table 1 Nest height from ground, and nest and cavity dimensions (cm) of five forest-nesting bird species

From: Breeding strategies of open-cup-nesting birds in sub-Antarctic forests of Navarino Island, Chile

Nest dimensionsa Height from ground Nest diameter Nest depth Nest diam/depth ratio Cup diameter Cup depth
P. patagonicus (n = 17) 74.5 ± 10.5 (0–140; 90) 12.7 ± 0.6 7.8 ± 0.6 1.6 7.5 ± 0.4 6.0 ± 1.6
T. falcklandii (n = 8) 36.5 ± 19.9 (0–133; 10) 16.6 ± 1.2 8.4 ± 2.5 2.0 9.0 ± 1.2 5.0 ± 0.7
A. parulus (n = 16) 130.1 ± 45.5 (43–800; 78) 8.4 ± 0.3 6.9 ± 0.4 1.2 4.1 ± 0.3 3.7 ± 0.4
E. albiceps (n = 28) 121.0 ± 14.1 (40–355; 99) 10.2 ± 0.4 6.9 ± 0.5 1.5 5.4 ± 0.2 3.4 ± 0.2
Z. capensis (n = 34) 3.7 ± 2.2 (0–55; 0) 14.0 ± 1.0 5.9 ± 0.6 2.4 6.6 ± 0.4 4.0 ± 0.3
Cavity dimensionsb Height from ground Entrance diameter Entrance height Interior depth Interior height DCHc
T. falcklandii (n = 12) 388.6 ± 78.3 (81–1120; 319) 13.2 ± 2.3 3.9 ± 34 34.2 ± 2.4 22.0 ± 4.4 56.1 ± 4.1
  1. Data are expressed as means ±1 standard error (SE). In addition, for height from the ground, we report range and median in parenthesis
  2. aMeasurements of nests found on Navarino Island
  3. bMeasurements of the cavities used for nesting by T. falcklandii in La Araucanía Region
  4. cDCH Diameter of the trunk at the cavity height