{"data":[{"source":"bio.acousti.ca","id":"47381","topic":"behaviour","value":"[Dense grass] tufts are also used by the males as song perches. Unlike many bush-crickets, they sing most in the early part of the day - from mid-morning to early afternoon, and only during warm weather. The song is usually delivered from a perch on a grass tussock, and takes the form of prolonged bursts of repeated high-pitched clicks. The rate of repetition increases to about 10 clicks per second within a minute or so of the start of a burst. The volume of the song is quite low, and for many observers a bat detector is needed to locate it at more than a few metres distance. Males are also reported to emit short isolated chirps.","topic_link":"http:\/\/rs.tdwg.org\/ontology\/voc\/SPMInfoItems#Behaviour","info_url":"https:\/\/bio.acousti.ca\/node\/47381"}]}