Table 1.
The song structure of four focal groups of plain-tailed wrens.
| percentages of quadruplets | ||||||
|---|---|---|---|---|---|---|
| group | songsa | mean cycles/song | solo songs ♂/♀ | all phrases match | two phrases conflict | all four phrases conflictb |
| W | 57 | 22.5 | 1/2 | 100 | 0 | 0 |
| C | 90 | 20.0 | 2/4 | 97.2 | 0.9 | 1.9 |
| B | 117 | 25.1 | 0/1 | 95.8 | 0.5 | 3.7 |
| R | 152 | 11.4 | 0/62 | 92.2 | 4.1 | 3.8 |
a
A song is defined as a continuous series of phrases, whether solos, duets or choruses, uninterrupted by a gap greater than 2 s.
b
Conflict is where individuals of one sex or both sing different pairs of phrases at the same time.