An estrous female calling with a distinctive long (~5-6 seconds), highly modulated, rolling rumble that she repeats at intervals, as if in song. Her calling begins immediately her mate dismounts. Each Estrous-Rumble starts at relatively low frequency, rises sharply and descend slowly, and calls may be repeated for up to 45 minutes. We refer to these calls as Estrous-Rumbles and this pattern of calling as an Estrous-Song.
Amparo is Chased by Esau and other males. Esau tries Reaching-Over but she keeps running. She Tail-Swats to monitor how close Esau is. We hear her bond-group Rumbling and Social-Trumpeting in excitement in the background. Then we hear her emit a series of Estrous-Running-Rumbles and two Estrous-Roars as she is caught and Mounted by Esau.
It appears to be a successful Mating and we hear the start of a Mating-Pandemonium as her family rushes to the scene. Amparo begins her Estrous-Song with a series of Open-Mouthed Estrous-Rumbles that are associated with Rapid-Ear-Flapping as her members of her family Rumble and Social-Trumpet overlapping their calls with hers. In this clip we show two Estrous-Rumbles. (Amboseli, Kenya)
