November 28, 2025Wildlife BiologyOpen Access

Saving Bambi from the mower? Using a drone with thermal camera to evaluate a low‐tech scaring technique to reduce roe deer fawn mortality during grass harvest

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Limited effect of scaring flags on fawn mortality challenges existing conservation strategies.
Observational analysis using a multi-rotor drone efficiently counted roe deer fawns in fields.
The ecological trap hypothesis suggests predation by tractors on hidden fawns during harvesting is problematic.
Drones with thermal cameras may enhance wildlife management in future conservation efforts.

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Observational analysis revealed limited effect of scaring flags on fawn mortality in roe deer, suggesting alternative solutions are needed.

Vogler et al. (2025) studied this question.

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Observational analysis revealed limited effect of scaring flags on fawn mortality in roe deer, suggesting alternative solutions are needed.