Canada Warbler

wilsonia canadensis

Parulidae · Wood-Warblers

Disc 2 · 2001 not listed
Disc 3 · 2006 listed
Disc 1 · 2011 not listed

The account

Description

13.5 cm. Birds in non-breeding plumage are gray above and bright yellow below with white undertail covers. The head has a yellow eyering and supraloral patch. a conspicuous band of gray streaks across the chest gives the impression of a necklace.

The disc records this picture against the bird without a caption. Disc 3 · 2006

Voice

The call is a sharp 'chik' and a softer 'tsip'.

Behavior

Forages at all heights of trees mostly in mixed flocks.

Breeding

North America.

Habitat and status

Straggler, humid montane forest.

Distribution

Winter visitor. Once found in Nova Friburgo in Estado Rio de Janeiro (¹⁵⁷) .

Decoded from the disc's own bytes. Each part is shown under the heading the disc files it under, and the wording, spelling and punctuation are the author's.

Vocalizations

Call, May 2001, Jaffrey, NH, USA. Low deciduous forest.

Recording files on the disc

7025.mp3 Call, May 2001, Jaffrey, NH, USA. Low deciduous forest.

Across the three discs

The work was published on three discs — Disc 2 in 2001, Disc 3 in 2006 and Disc 1 in 2011. Where they differ, that is a difference between historical releases, and it is never merged away. The 2011 disc is not treated as correcting the earlier ones.

Which discs list this bird

Disc 2 · 2001 — not in this disc's bird list
Disc 3 · 2006 — in this disc's bird list
Disc 1 · 2011 — not in this disc's bird list

How that was established

Disc 3 · 2006: aux_nonzero

The disc's own record fields that place the bird on its list: a non-empty entry in the species table, and the byte that marks it as selected on a local checklist.

The Disc 3 release carries an account for this bird, but the 2011 Disc 1 revision no longer includes it (a release difference).

The work's own taxonomy

The discs carried three parallel name schemes. All three are shown as recovered; none is a modern taxonomy and none has been updated.

Scheme	Scientific name	English name	Family
WORLD	wilsonia canadensis	Canada Warbler	Parulidae
CLEMENTS	wilsonia canadensis	Canada Warbler	Parulidae
AOU_HM	wilsonia canadensis	Canada Warbler	Parulidae

Open questions about this bird

Recovered evidence that has not been settled. It is published because leaving it out would misrepresent what the discs contain.

Review notes

review_0001

Recovered review record — open: Split the malformed 16-segment run into Canada Warbler and Golden-crowned Warbler.

Evidence: Two complete eight-segment account sequences occur consecutively and checklist order confirms both taxa. · Recommended: Confirm visually against the original program or field notes when available; retain correction unless contradicted.

Review v1.1 decision — accepted_provisionally

Reviewer: ChatGPT structural audit

Notes: The correction is strongly supported by account grammar, checklist order, species-name evidence, and media-segment placement. Retain in the working dataset; optional confirmation against the original program or field notes remains.

Source details

Identifier on this site: seb_species_0360
Account identifier: seb_account_0360
Account number on the disc: 360
Source edition: CD03 / 2006 package
Original taxonomy scheme: WORLD
Species boundary note: Recovered by splitting malformed 16-segment run.
Account boundary note: Recovered by splitting malformed 16-segment run.
Structure status: heuristic; decoded_account_text and segment JSON remain authoritative