Table 1 Behavior observation results of Japanese macaques in winter at Kamikochi using infrared cameras.

Camera	Site	Start	Last	Periods	Trigger	Monkeys	Search	Trial	Fishing	Like-fishing	Water	Walk	Rest	Drink	Others
1-i	St. 1	29 Jan	16 Feb	18	382	118	8	0	0	0	78	82	12	0	38
1-ii	St. 1	29 Jan	24 Feb	24	148	133	46	18	1	0	97	77	14	0	10
1-iii	St. 1	29 Jan	24 Feb	5	432	181	175	100	4	3	214	71	32	0	89
1-iv	St. 1	29 Jan	23 Feb	24	158	149	7	1	0	1	102	114	25	0	57
1-v	St. 1	29 Jan	24 Feb	24	155	122	27	16	1	0	66	109	56	1	28
2-i	St. 2	29 Jan	19 Mar	48	169	56	1	0	0	0	32	26	0	0	9
2-ii	St. 2	29 Jan	4 Mar	33	63	46	7	1	0	0	41	25	0	1	3
5-i	St. 5	29 Jan	21 Feb	22	269	118	51	30	2	2	11	33	0	1	90
5-ii	St. 5	29 Jan	21 Feb	21	156	95	24	4	0	0	45	42	0	3	49
5-iii	St. 5	29 Jan	1 Feb	5	161	0	0	0	0	0	0	0	0	0	0
5-iv	St. 5	29 Jan	21 Mar	50	133	104	3	1	0	0	36	42	2	4	81
5-v	St. 5	29 Jan	4 Feb	5	158	0	0	0	0	0	0	0	0	0	0
Sum		29 Jan	23 Mar	279	2384	1122	349	171	8	6	722	621	141	10	454

Start, date of setting camera; Last, Last shooting date; Periods, the number of days the camera recorded; Trigger, the number of triggered video clips during study period; Monkeys, the number of videos containing monkeys; Search, the number of monkeys looked for fish; Trial, the number of monkeys that tried to catch fish; Fishing, the number of times successfully caught fish; Like-fish, the number of times something like a fish was caught, although it could not be clearly confirmed from the video; Water, the number of monkeys "looking for water plants or aquatic insects at the riverside"; Walk, the number of monkeys "only walking" (just moving); Rest, the number of monkeys "resting" (only sitting); Drink, the number of monkeys that drank water; Others, other behaviors.

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