Table 6 Neonatal ΔMR values calculated in this study using data available from the literature.

Data calculated from Starck and Ricklefs¹⁵

 Struthioniformes

Semi-precocial, fed by parents

5.4 ± 0

1

 Megapodiidae

Hyperprecocial

11.0 ± 3.7

2

 Phasianidae

Semi-precocial, fed by parents

1.4_{(0- → 5.5)}

6

 Anseriformes

Precocial

15.0 ± 4.5

6

 Altricial birds (Passeriformes, Psittacidae, Scolopacidae)

Altricial

0.0 ± 0.0

10

 Gruiformes

Semi-altricial

1.0 ± 0.0

1

 Scolopacidae

Precocial (sea birds)

3.6 ± 1.3

11

 Larinae

Semi-precocial (sea birds)

3.4 ± 1.2

11

 Alcinae

Semi-precocial (sea birds)

5.9 ± 4.9

4

 Sheniscidae

Semi-precocial (sea birds)

0.8 ± 0.3

3

 Procellariidae

Semi-precocial (sea birds)

5.6 ± 2.9

14

Data from Gienger et al.⁶² and Whitehead et al.⁷⁶

 Crocodylus

Hyperprecocial

0.2 ± 0.0

1

Data from Jones et al.¹⁷

 Sea turtles

Hyperprecocial

0.4 ± 0.0

2

Data from Thompson and Withers⁶⁰

 Varanidae

Hyperprecocial

6.2 ± 0.2

2

Data from Luick⁶⁸

 Cervidae

Precocial

27.0 ± 0.0

1