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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