อ้างอิง ของ อีแก

  1. ↑ BirdLife International (2004). Corvus splendens. 2006 IUCN Red List of Threatened Species. IUCN 2006. Retrieved on 12 May 2006. Database entry includes justification for why this species is of least concern
  2. ↑ Rasmussen, PC & JC Anderton (2005) Birds of South Asia: The Ripley Guide. Smithsonian Institution and Lynx Edicions. Vol 2. p.598
  3. ↑ Cooper, John E. (1996) Health studies on the Indian house crow (Corvus splendens) Avian Pathology 25(2):381
  4. ↑ Ottens, G. (2003) Background and development of the Dutch population of House Crows Corvus splendens. Limosa 76(2):69-74
  5. ↑ Brook, B.W., Sodhi, N.S., Soh, M.C.K., Lim, H.C. (2003) Abundance and projected control of invasive house crows in Singapore. Journal of Wildlife Management 67(4):808-817
  6. ↑ Ryall, C., 2002. Further records of range extension in the House Crow Corvus splendens. BOC Bulletin 122(3): 231-240
  7. ↑ Nyari, A., Ryall, C. and Peterson, A. T. 2006. Global invasive potential of the house crow Corvus splendens based on ecological niche modeling. J. Avian Biol. 37:306-311.
  8. ↑ นกกตัญญู จากไทยรัฐ