Note 317 — INDEX TO THE NOTES.
Reading edition
low-roosted lark, i.e. the lark that has roosted on the ground. This is certainly Milton’s meaning, as he refers to the bird as rising from its “thatched pallet” = its nest, which is built on the ground. ‘Roost’ has, however, no radical connection with rest, but denotes a perch for fowls, and Keightley’s remark that Milton is guilty of supposing the lark to sleep, like a hen, upon a perch or roost, may therefore be noticed. But the poets’ meaning is obvious. Prof. Masson takes ‘thatched’ as referring to the texture of the nest or to the corn-stalks or rushes over it.