“…High-resolution aerial drone imagery can allow detailed observations and be very informative, providing data on respiratory cycles, travel speed, morphometric measurements, body condition, individual marks, behavior, and group composition for numerous cetacean species (Baxter & Hamilton, 2018;Burnett et al, 2019;Fettermann et al, 2022;de Oliveira et al, 2023). Here, we present a case study applying high-resolution drone monitoring of Bryde's whales based on an opportunistic sighting in Ubatuba, southeastern Brazil.…”