Table 1. Description the four blue whale (B. m. brevicauda) surface events filmed via Unmanned Aerial Systems (UAS) on 20-Feb-2017 in the South Taranaki Bight, New Zealand, including comparative metrics of speed, and krill patch size and response to whale.

Event	Local start time	Whale behavior	Krill patch size (m2)	Distance (m) at which whale responds to krill patch (time from intersection/strike)	Maximum speed(m s−1)	Distance (m) between krill patch and whale when krill first show flee response	Speed (m s−1) of whale when krill respond	Distance from eye to krill patch (m) when whale visually inspects patch (time from intersection/strike)
1	19:23:38	Whale engages in surface lunge feeding event	45	20.74 (9.0)	3.33	2.00	3.00	18.46 (6.5)
2	19:30:19	Whale flares pectoral fins to alter course slightly as she investigates a small krill patch and surfaces - no feeding	1	17.87 (6.45)	2.75	NA	NA	11.35 (2.44)
3	19:36:36	Whale surfaces and makes a slight course change near small krill patches - no feeding	2.47	5.02 (NA)	NA	4.93	NA	8.56 (NA)
4	19:38:05	Whale flares pectoral fins, changes speed, and rotates her body to examine a medium size krill patch - no feeding	4.72	12.29 (4.83)	2.90	3.77	2.69	15.24 (4.5)