Pica
Pica est genus avium familiae Corvidarum, in Vetere Novoque Mundis endemicum.
Eis sunt longae caudae et plerumque signa alba et nigra. Una species late in Europa et Asia habitat, una ubique in America Septentrionali, et una solum in California.
Taxinomia
Picae ferme existimantur cognati Cissae et Urocissae, generum Asianorum, sed investigationes recentiores (Ericson et al. 2005) confirmant eis cognatos propinquissimos potius esse corvos Eurasianos.
Duae vel tres species late notae sunt, una species rostro flavo et una vel duae rostro nigro. Investigationes recentiores (Lee et al. 2003) taxinomiam picarum in dubium vocant. P. hudsonia et P. nuttalli inter se sunt cognati propinquissimi, sed fortasse non species disiunctae; si species sint, Coreana P. picae varietas propria species existimanda est. Species ergo sunt:
- Pica pica
- Pica nuttalli
- Pica hudsonia
- Pica (pica) sericea
Pica mourerae, praehistorica picae species, in fossiliferis finis aevorum Pliocaeni–Pleistocaeni stratis Maioricae invenitur.
Bibliographia
- Ericson, Per G. P., Anna-Lee Jansén, Ulf S. Johansson, et Jan Ekman. 2005. "Inter-generic relationships of the crows, jays, magpies and allied groups (Aves: Corvidae) based on nucleotide sequence data." Journal of Avian Biology 36:222–234.
- Lee, Sang-Im, Cynthia S. Parr, Youna Hwang, David P. Mindell, et Jae C. Choea. 2003. "Phylogeny of magpies (genus Pica) inferred from mtDNA data." Molecular Phylogenetics and Evolution 29:250–257. doi:10.1016/S1055-7903(03)00096-4.
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Nexus externi
 | Situs scientifici: • ITIS • NCBI • Biodiversity • WoRMS: Marine Species • Fossilworks |
 | Vicimedia Communia plura habent quae ad Picam spectant (Pica, Pica (genus)). |
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