## Names

- Long-tailed Cuckoo
- Long-tailed Koel
- LTC
- lotkoe1 

**Active during the day and the night**

## Tips

**True LTC pattern** (from verified examples):
- **Ascending whistle**: rising frequency sweep from ~1-2 kHz up to ~4-6 kHz
- **Shape**: clear diagonal upward line on spectrogram, NOT vertical bars
- **Duration**: typically 1-3 seconds per note
- **Quality**: smooth, flute-like whistle, not harsh or buzzy
- **Harmonics**: may show faint harmonics above main note

**Common confusion**:
- Kiwi calls (vertical bars, repetitive)
- Bellbird/Tui (more complex, variable)
- Other cuckoos (different pitch patterns)

**When uncertain**: Compare directly against the 10 verified R620 reference examples in `Long-tailed Cuckoo/` folder.