An audible exhalation of air through the trunk that appears to be made for the purpose of clearing the nasal passages. A Blow can be distinguished from a Snort, which is more sharp and purposeful than a blow.
A young male is on the trail of someone, he Sniffs-Ground, engages in a long bout of Flehmen and does 10 Trunk-Flick-Downs. Four of these are associated with Blows. (Maasai Mara, Kenya)
