Table 1. Environmental conditions and food availability levels of the three observation seasons.

	food availability	mean relative humidity (%)	total rain (mm)	temperature (°C)			wind speed (km/h)
				mean (±SD)	max	min	mean (±SD)	max	min
Summer 2010 (March 01–March 11)	scarce	32.3	0	22.7 (±4.12)	31.6	15.4	6.7 (±3.13)	17.7	0
Winter 2010 (July 26–August 06)	scarce	14.6	0.01297 (rain and snow)	5.66 (±5.21)	18.6	−2.1	4.13 (±2.85)	12.9	0
Summer 2011 (March 01–March 10)	abundant	32.3	11.5	20.73 (±3.21)	28.5	15.1	4.52 (±2.2)	11.3	0