. 2016 Aug 24;11(8):e0159271. doi: 10.1371/journal.pone.0159271

Table 1. Estimated probability of detection (SEs in parentheses) of golden eagle groups from each side of the aircraft based on surveys conducted 2006–2013 [2].

Three observers (back-left, and front-right and back-right) were present on surveys with exception of 68 transects in 2008, where only a back-left observer and a front-right observer were available.

	Observer Position in Aircraft
Observation Type	Back-Left	Right (front and back)	Front-Right
Perched: 107 m AGL^a	0.467 (0.026)	0.588 (0.029)	0.456 (0.026)
Perched: 150 m AGL^b	0.280 (0.047)	0.396 (0.051)	0.280 (0.045)
Flying	0.380 (0.066)	0.472 (0.058)	0.301 (0.038)

^aBirds seen while perched when the aircraft was flying 107 m Above Ground Level (AGL)

^bBirds seen while perched when the aircraft was flying 150 m Above Ground Level (AGL)