Table 1.

Ethogram of the behavioural classes of crab plovers distinguished on the video recording and the number of assignments per tracked bird

Behavioural class	Description	# of observations per tracked bird								Total
		#446	#642	#672	#674	#675	#676	#680	#682
Attack	Fast forwards prey attack, typically followed after a period of waiting	1	3	1	6	0	0	0	26	37
Body care	Cleaning and arranging feathers	21	0	0	18	3	23	0	2	67
Fly	Flying	4	0	0	7	0	0	0	8	19
Handle	Preparing prey for ingestion, usually crabs are stripped on the ground	53	6	1	19	12	3	0	75	169
Inactive	All inactive behaviours, sit, sleep, stand, sit on tarsus, lurk	207	24	56	257	70	77	6	480	1177
Peck	Pecking, similar to attack, but more downwards and slower	17	0	0	11	2	8	0	9	47
Search	The bill is used to sense prey, similar to, but less irregular than handling	56	0	14	31	47	35	0	116	299
Walk	Moving legs forwards	124	16	45	213	60	59	5	331	853