with increasing ambient temperatures in R
than U and UW pastures. Rates of increase in the probability
of cow presence in shade (within 10 m of tree drip
lines) in the total pasture with increasing temperatures did
not differ between treatments. However, probability of
cow presence in riparian shade increased at greater (P <
0.01) rates in small than large pastures. Pasture size was
a major factor affecting congregation of cows in or near
pasture streams with unrestricted access.