This Orange-billed Nightingale Thrush (Catharus aurantiirostris) was recorded on a wonderful path through the forest that I love near the Cabinas el Bosque, Monteverde (Costa Rica), 6/17/99.
Slaty-backed Nightingale-Thrushes (Catharus fuscater) are heard more than seen in the Monteverde Cloud Forest Preserve (Costa Rica), and they sing one of the area's most pleasing songs.
IIf you get really close to a singing Slaty-backed Nightingale Thrush, the song can lose some of the ethereal quality that it gains from reverberation and natural acoustics. This example was recorded for only a few meters away - you'll see what I mean.
Hermit Thrushes (Catharus guttatus) sing one of the most beautiful songs in North America in the springtime. This recording was made on Mingus Mountain, near Jerome, Arizona, 5/31/99
The call of this bird is nothing like the song, in fact it a bit harsh - rather like a Spotted Towhee's mew (that's a warbling vireo in the background). You'll notice that this bird's song is made up of similar short phrases, raised and lowered in pitch with each iteration.