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1
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- Songs-used to establish territories and maintain pair bonds; often
but not necessarily complex; usually species distinctive
- Calls-used for a variety of communication purposes; usually shorter
and simpler than songs; can be useful for identification but not
as species distinctive as songs
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2
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- Contact Call [Chip]-heard year-round to maintain contact; given
by perched birds
- Flight Call-heard year-round to maintain contact in flight; also
often given by perched birds and birds about to fly
- Other Calls-heard year-round to announce danger or a multitude
of other functions
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3
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- Pitch-the frequency of call; note whether high or low AND whether
level, upslurred or downslurred
- Length (Duration)-note whether long or short
- Rhythm-note whether there is a pattern in repeated calls
- Quality (Timbre)-the general quality or special characteristic
of a call; described by an adjective(s) such as clear, dry, husky,
buzzy, etc. (see next slide)
- Amplitude (Loudness)-CAUTION! This can depend on how close the
bird is, the nature of the intervening space, or the mood of the
bird
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4
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- Buzzy-the burry, vibrating, “zzz-sounding” quality of some calls
- Clear-no buzz or burry quality
- Dry-lacking a musical or liquid sound
- Sweet-opposite of dry; a rich or “pleasing-to-the-ear” sound
- Hard-loud amplitude; opposite of soft
- Metallic-the sound component of a call similar to striking two
metal bars together
- Sharp-a clear, abrupt, somewhat piercing sound
- Slapping-quality of some sweet calls similar to a slap on the
face
- Resonant-energetic, intensified, and penetrating
- Flat-dull; lacking emphasis, musical quality, and possibly amplitude
- Husky-refers to a harsh or dry characteristic in a call
- Mellow-a soft, gentle, relaxed quality of a call
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5
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6
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7
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8
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9
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10
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11
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12
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13
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14
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15
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- Sibley, David Allen, The Sibley Guide to Birds, Alfred A. Knopf,
Inc.,( 2000)
- Evans, William R. and O’Brien, Michael, Flight Calls of Migratory
Birds, Old Bird, Inc., (2002)
- Getty, Stephen R., Call Notes of North American Wood Warblers
in Birding Vol. XXV No. 3 (June 1993)
- Elliott, Lang, Stokes Field Guide to Bird Songs, Time Warner (1997)
for NOCA and PISI cuts
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