Table 1. Pairwise genetic divergence between selected Cuculus lineages for three mitochondrial genes.
| Comparison | COI | ND2 | 12S |
|---|---|---|---|
| C. c. bakeri (Pa. alphonsianus)—C. c. bakeri (other hosts) | 0.14% | 0.64% | 0.22% |
| C. canorus (P. phoenicurus)—C. c. bakeri | 0.52% | 0.69% | 0.71% |
| C. canorus (P. phoenicurus)/bakeri—C. canorus/optatus/saturatus | 3.16% | 3.86% | 2.15% |
| C. micropterus—C. canorus(P. phoenicurus)/bakeri | 2.91% | 4.99% | 3.43% |
| C. micropterus—C. canorus/optatus/saturatus | 3.33% | 4.27% | 2.16% |
| C. poliocephalus—C. ‘canorus'/micropterus | 5.11% | 8.21% | 5.09% |
| Substitution model | TrN+I | TrN+G | HKY+I |
Common cuckoos Cuculus canorus parasitizing common redstarts Phoenicurus phoenicurus in Finland and Ashy-throated parrotbills Paradoxornis alphonsianus in China lay immaculate blue eggs.