is usually done visually by marine mammal observers. However, night-time, reduced visibility (rough seas, fog, rain, etc.) or observer fatigue and distraction all limit the reliability of visual monitoring [...] commercial, cooled 360° thermal imaging sensor. After more than 10 years of research ashore and at sea, we captured thousands of whale cues (mostly blows and bodily displays) on video and analysed the data [...] environmental conditions (fog being the major impediment). Based on this comprehensive operational at-sea experience, we reframed our Tashtego software and are now in the final stages of finishing the most