House Sparrow Passer domesticus, IJmuiden, 9 June 2010 (Roy Slaterus): sound-recording

Soft chuwiv
Few harmonics clearly visible 
Mainly 1.1-6.1 kHz; 0.11 sec
Average 1.5-6.0 kHz; 0.12 sec (n=6)



House Sparrow Passer domesticus, IJmuiden, 17 June 2010 (Roy Slaterus): sound-recording

Soft chuwiv - sometimes preceded by higher call
Shape slightly different 
Main call 1.6-5.8 kHz; 0.10 sec 



House Sparrow Passer domesticus, IJmuiden, 17 June 2010 (Roy Slaterus): sound-recording

Another example by same bird as above
Shape slightly different
Main call 1.1-5.4 kHz; 0.12 sec



House Sparrow Passer domesticus, Hoofddorp, 14 March 2012 (Roy Slaterus): sound-recording

Soft chuwiv 
Shape slightly different 
1.6-6.3 kHz; 0.10 sec 


index