{"data":[{"source":"bio.acousti.ca","id":"53437","type":"techreport","title":"Bird vocalizations: seven different types of Great tit (Parus major) vocalizations","author":"Verboom, Willem C.","editor":null,"year":"2018","month":null,"journal":null,"booktitle":null,"series":null,"howpublished":null,"volume":null,"number":"201811","pages":null,"chapter":null,"edition":null,"publisher":null,"organization":null,"institution":null,"school":null,"address":null,"type_of_work":null,"note":null,"isbn":null,"issn":null,"doi":null,"url":"https:\/\/www.researchgate.net\/profile\/Willem_Verboom2\/publication\/329390530_Bird_vocalizations_seven_different_types_of_Great_tit_Parus_major_vocalizations\/links\/5c1618f34585157ac1c5cbaa\/Bird-vocalizations-seven-different-types-of-Great-tit-Parus-major-voc","attachments":"https:\/\/bio.acousti.ca\/sites\/default\/files\/Junomemo201811_koolmees-3-v2.pdf","keywords":null,"abstract":"The Great tit (Parus major) produces a large variety in calls and songs. Seven different types of vocalizations are described in this paper. Interesting is that those types differ in (acous- tic) structure. Three structures can be observed: 1) a vocalization can be 'tonal'; a pure tone, usually in time varying in frequency (often a so-called 'upsweep'); 2) a vocalization can be 'pulsed', a series of pulses consisting of a fundamental frequency on which the pulse repetition frequency is superimposed; the pulse repetition rate is between 210 and 240 pulses\/s; 3) a vo- calization can be pulsed, however, with a \u2018semi-broadband\u2019 spectrum. Great tit vocalizations are concentrated around two frequency ranges: around 4 kHz and around 8 kHz. The duration of vocalization components is rather limited, usually between 95 and 130 ms.","type_name":"Report","journal_abbreviation":null,"pmid":null,"info_url":"https:\/\/bio.acousti.ca\/node\/53437"}]}