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Song Phrase 1
 
  
Frequency just below 6 kHz, good enough for COFL.
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Song Phrase 2
 
  
Discontinuous phrase 2, like most Warner birds. (Compare to right-most example for
COFL.) Tick frequency below 3 kHz = COFL. Maximun frequency higher than previous bird,
too high for COFL. Rounded top = COFL. Overall, closer to COFL, but frequency too high. 
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Song Phrase 3
 
  
COFL-like. Frequency within COFL range. 
Middle note is rather faint for COFL, but it is still louder than the tick.
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Male Position Note
 
  
Intermediate. Initial frequency below 4 kHz (COFL) and terminal frequency above 6 kHz (PSFL). 
Absence of break and high terminal frequency suitable for PSFL, but PSFL
typically descends in frequency in the middle where this note rises.
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Female Position Note
 
  
The only way to distinguish COFL and PSFL FPNs is frequency, and the frequency of this one, below
7 kHz, is right for COFL.
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