Przewalski’s Horses (Equus ferus przewalskii) Responses to Unmanned Aerial Vehicles Flights under Semireserve Conditions: Conservation Implication

Table 1

Comparison of alert height and run away height of Przewalski’s horses.

	Variables	Number	Alert height (m) ± SE	t-test	Run away height (m)  ± SE	t-test
Males	Immature males	5	5.0 ± 0.71		1.40 ± 0.55
	Adults males	9	40.33 ± 9.38		18.67 ± 12.80
Females	Immature females	4	4.50 ± 0.50		1.25 ± 0.50
	Adults females	44	16.68 ± 5.26		2.16 ± 0.83

Alert height, height for horse to notice UAVs; run away height, height for horse to move away (means with standard errors). “Number” refers to the number of flights: only one horse was scored when the drone was flown over a herd.