What's the difference between bobolink and ortolan?

Bobolink

Definition:

(n.) An American singing bird (Dolichonyx oryzivorus). The male is black and white; the female is brown; -- called also, ricebird, reedbird, and Boblincoln.

Example Sentences:

(1) Electrophysiological recordings from the ophthalmic nerve and the trigeminal ganglion of the bobolink (Dolichonyx oryzivorus) indicate the presence of units (14% of the spontaneously active cells) that are sensitive to small changes in the magnetic field.
(2) Extracellular recordings using glass microelectrodes were made from the ophthalmic and supraorbital nerves of a transequatorial migratory bird, the bobolink.
(3) One possible transducer substance that could account for such a sensitivity is magnetite, which has been previously reported in the upper beak area of the bobolink.

Definition:

(n.) A European singing bird (Emberiza hortulana), about the size of the lark, with black wings. It is esteemed delicious food when fattened. Called also bunting.
(n.) In England, the wheatear (Saxicola oenanthe).
(n.) In America, the sora, or Carolina rail (Porzana Carolina). See Sora.

Example Sentences:

(1) Our habitats are slowly dying and our natural capital – reflected by species such as birds and butterflies – is being put under enormous pressure from unsustainable agriculture and land use policies.” Ortolan bunting numbers have fallen by around half.
(2) Numbers of skylark and ortolan bunting, a songbird illegally hunted and eaten whole in France, have fallen by around half.