Hear For Yourself – Examples of Pitch-lowered Bird Songs:
Below are recordings of numerous high-pitched singers where non-shifted “normal” songs are followed by three pitch-lowered versions (divide by two, three and four). The frequency ranges of the natural songs are provided in kilohertz (1 kHz = 1000 Hz).
Listening Instructions: If you have high frequency hearing loss and want to judge how helpful our Hear Birds Again app will be, please do the following:
• Find a quiet place to listen
• Wear headphones if possible
• Adjust volume to a low level, such that the narration is barely audible
Note that turning down the volume approximates natural outdoor situations in which distant bird songs are first discerned. Being able to hear soft and distant songs is all-important in the realm of birding by ear.
Given that you have moderate to severe high frequency hearing loss and you follow the above instructions, you will not be able to hear songs played at normal pitch (or you’ll only hear the very bottom end of songs), but if your hearing is reasonably good up to 2kHz or thereabouts, you should be able to hear one or more of the pitch-lowered versions, even when played softly.
Blackburnian WarblerFrequency Range: 5-11kHz
Indigo BuntingFrequency Range: 3.5-7kHz
Black-and-White WarblerFrequency Range: 7-8kHz
Blue-winged WarblerFrequency Range: 5-8kHz
Chipping SparrowFrequency Range: 4-7kHz
Black-throated Green WarblerFrequency Range: 5-7kHz
Yellow WarblerFrequency Range: 4-7kHz
Grasshopper SparrowFrequency Range: 7-9kHz
Winter WrenFrequency Range: 3.5-8kHz
Northern ParulaFrequency Range: 5-7kHz
American RedstartFrequency Range: 5-8kHz
Cedar WaxwingFrequency Range: 7-9kHz
Bay-breasted WarblerFrequency Range: 6-8kHz
Cape May WarblerFrequency Range: 7-9kHz
Song SparrowFrequency Range: 3.5-7kHz
Common YellowthroatFrequency Range: 4-7kHz
Brown CreeperFrequency Range: 4-7.5kHz
Blackpoll WarblerFrequency Range: 7.5-9kHz
Golden-crowned KingletFrequency Range: 4-8kHz
Prairie WarblerFrequency Range: 4-7kHz
Eastern Wood-PeweeFrequency Range: 3-6kHz