Table 2 Output of the LMM with airspeed included as dependent variable, number of fixes, hour of the day, harness type and species as fixed terms, individual identity and date as random intercepts. The interaction term between harness type and species was non significant in the gliding model and therefore excluded

Fixed effects

estimate (St. Err.)

Intercept

6.62 (0.74)***

10.02 (1.03)***

Leg-loop

0.41 (0.27)

0.21 (0.38)

Tawny eagle

2.11 (0.85)*

1.51 (1.38)

Griffon vulture

5.32 (0.72)***

4.63 (1.10)**

Himalayan vulture

4.90 (0.73)***

3.60 (1.14)*

Rüppell’s vulture

3.94 (0.81)**

3.88 (1.32)*

Hour

−0.07 (0.1)

−0.001 (0.13)

Number of fixes

0.001 (0.001)

0.01 (0.003)***

Random effects (N. groups)

intercept St. Dev.

Individuals

0.38 (10)

0.76 (10)

Date

0.94 (7)

0.96 (7)

Observations

604

464

Marginal R\(^2\)

0.18

0.15

Conditional R\(^2\)

0.27

0.25