Table 3. The study periods, contact hours, and the number of adult and subadult animals.

Group	Study period	Contact hours	Number of males	Number of females
BO	2008–2010	406	1–3	8–11
BS	2006–2011	406	1–8	6–7
DA	2006–2010	583	3–9	7–14
NP	2007–2011	371	1–4	5–6
OD	2006–2010	465	1–8	6–12
RT	2006–2011	613	3–4	6–8
SP	2006–2011	479	1–4	4–5
WW	2006–2011	644	4–6	7–17