BioAcoustica is a free, open repository of wildlife sound recordings from the Natural History Museum, London.
Taxonomic index of the BioAcoustica collection
Acoustic and biological measurements in the BioAcoustica collection
Recording annotations from ann-o-mate
The specimens that recordings are of, from the collections
Where the specimens that recordings are of were collected, not where the sound was recorded
| Pholidoptera griseoaptera | 1974-08-21 · David R. Ragge |
| Pholidoptera griseoaptera | 1973-08-12 · David R. Ragge |
| Pholidoptera griseoaptera |
| Ahlén, Ingemar (1981). Ultraljud hos svenska vårtbitare. Entomologisk Tidskrift, 102: 27-41. |
The 'solo' song of the male is a brief, high pitched chirp repeated at variable intervals of a few seconds. However, several males are often singing in close proximity to one another, and sometimes this results in a regular pattern of alternation between two adjacent males. When more than two males sing together, their chirps still are generally emitted separately to produce a non-synchronous 'chorus' (Jones, 1963, 1966). The males can also emit a more prolonged chirp lasting approximately a second. This is considered to signify an aggressive interaction betweenmales, but is also occasionally emitted by males on the approach of females. In general, males do not appear to interact aggressively with one another. However, experimental work does show that the onset, termination, and timing of chirps are all affaected by the stridultion of other males (see Chapter 5).
The characteristic shrill song of the male can be heard through the day and into the night. It usually consists of three syllables ('tsitsitso'), which at higher temperstures merge completely into a sharp 'tsrit', audible from about 10m. As a reaction to disturbance by another male, more of these syllables are added together to form a louder sequence. The song can often be heard along forest tracks even in misty, overcast weasther and even after the first night frost, but it is not usually easy to find the songsters.