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.
The female calls very powerfully at the beginning of her song, gradually diminishing in intensity over time. Likewise the time between each call in the song is begins at around 1.5 seconds and increases with the length of time after the mating. She may reach out, repeatedly, to touch her partner's penis (Trunk-to-Genitals), or his semen on the ground (Sniff-Semen), calling with more vigor at each renewed sniff. Her calling is associated with loud, Rapid-Ear-Flapping and copious secretion from her temporal glands (Temporin).
Estrous-Rumbles have the effect of attracting (often distant) males. Though typically emitted in association with a mating, females at peak estrus have been documented to call in this manner in the absence of a mating.
References: Poole 1987b; Poole et al 1988; Poole & Moss 1989; Poole 2011. (Full reference list)
This behavior occurs in the following context(s): Advertisement & Attraction