Known from the discs' own bird lists
Swainson's Hawk
buteo swainsoni
Accipitridae
- Disc 2 · 2001 not listed
- Disc 3 · 2006 not listed
- Disc 1 · 2011 listed
The detailed account of this bird below comes from Disc 1 · 2011. The other discs list the bird but carry no account of it, and none is invented here. It first appears on Disc 1 · 2011.
From the original Disc 1 · 2011 revision
Detailed account — Disc 1 · 2011
This detailed account first appears in the 2011 Disc 1 revision; the earlier releases have no account for this bird.
Description Disc 1 · 2011
47 - 55 cm. The adult is dark brown above with pale edges on the feathers; lateral upper tail coverts white or tawny, narrowly barred brown; prinmaries and secondaries mostly black; rectrices brownish gray tipped white and with 9-10 dusky bars; throat white, lightly streaked dark; sides of head blackish; rest gray-brown or dull rufous with fine black shaft streaks; abdomen and crissum white, tibiae and flanks barred with cinnamon.
The adult rufous phase is similar to the pale adult, but abdomen to crissum light brownish narrowly barred with rusty brown.
The adult black phase is fuscous brown, under tail coverts buffy narrowly barredwith rusty brown.
The immature has a back similar to pale phase, but the side of head neck and upper back are streaked and spotted with white; below buffy white, the breast and sides heavily spotted with fuscous.
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The disc records this picture against the bird without a caption. Disc 1 · 2011
The account, continued
Voice Disc 1 · 2011
A loud whistle "wieeee.....wieeeee"
Behavior Disc 1 · 2011
Still-hunts from perch or swoops down at prey during glide.
Habitat and status Disc 1 · 2011
A straggler to savannahs, grasslands, farmland.
Distribution Disc 1 · 2011
In Estado São Paulo reported from Broa.
Vocalizations
Each disc's own recording entries are shown under that disc's label. A player appears only where the recording's file survives on a preserved disc.
Disc 1 · 2011
Montana Disc 1 · 2011
More images
The disc records this picture against the bird without a caption. Disc 1 · 2011 The disc records this picture against the bird without a caption. Disc 1 · 2011 The disc records this picture against the bird without a caption. Disc 1 · 2011 Adult Disc 1 · 2011
Which discs list this bird
- Disc 2 · 2001 — not in this disc's bird list
- Disc 3 · 2006 — not in this disc's bird list
- Disc 1 · 2011 — in this disc's bird list
How that was established
- Disc 1 · 2011
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.
Historical checklist participation
Disc 1 · 2011
Listed on product/edition lists: Sebrazil.ckd