Table 4: Comparison of the songs in Part I that are not a trill or churr, elements upslur, tempo is steady, pitch is steady, elements are not spoken, and song is composed of one whistle.
Species |
Relative sharpness (1–4; 1 = least) |
Relative clarity (1–3; 1 = nasal, 3 = clear) |
Relative length of first element (1–4; 1 = shortest) |
Black-striped Woodcreeper* |
4 |
1 |
4 |
Great Crested Flycatcher* |
3 |
1 |
2 |
Brownish Twistwing* |
2 |
1 |
3 |
Forest Elaenia* |
2 |
2 |
1 |
Paltry (or Mistletoe) Tyrannulet |
1 |
3 |
2 |
Swainson’s Thrush |
2 |
2 |
1 |
* Elements upslur only, unlike somewhat similar-sounding song of Eastern Wood-Pewee, which down/upslur