Pica pica hudsonia vs magpie

Pica pica hudsonia and magpie both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pica pica hudsonia	Yes	No	No	No
magpie	Yes	No	No	No

As nouns, magpie is a hypernym of Pica pica hudsonia; that is, magpie is a word with a broader meaning than Pica pica hudsonia:

Pica pica hudsonia: a magpie of Rocky Mountains in North America
magpie: long-tailed black-and-white crow that utters a raucous chattering call

Pica pica hudsonia (noun)	magpie (noun)
a magpie of Rocky Mountains in North America	long-tailed black-and-white crow that utters a raucous chattering call
	someone who collects things that have been discarded by others
	an obnoxious and foolish and loquacious talker