The Javan green magpie (Cissa thalassina) is a passerine bird in the crow family, Corvidae.

[2] Once common, the species has declined drastically as a result of habitat loss and illegal capture for the wild animal trade.

[4] In an attempt at saving the species, a captive breeding program based on confiscated individuals has been initiated by the Cikananga Wildlife Center in Java (since 2011) and a few European EAZA zoos (since 2015).

Their eyes are dark brown and they have a relatively short tail.The bright green plumage is the result of a combination of structural coloration, and the yellow pigment lutein, which they gain from their insect diet.

[3] Javan green magpies lay cream coloured speckled eggs[7] and are altricial, hatching with no feathers, completely dependant on their parents.