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The most reliable field mark between Speckled Pigeon and Red-eyed Dove is the extensive white speckling on the rufous wings of the Speckled Pigeon, which is never matched by the Red-eyed Dove. Both species are medium-large pigeons, but Speckled Pigeon is heavier and bulkier, with a more robust build. In all plumages, Speckled Pigeon shows a striking combination of rufous and blue-grey tones with prominent white spots, while Red-eyed Dove is more subdued, with a mauve-pink breast and a distinctive black half-collar on the neck. Immature birds of both species are duller and browner, but the wing speckling of Speckled Pigeon remains a strong clue. Both species can occur near human habitation, but Red-eyed Dove is more associated with wooded or riparian habitats.

1. White speckling on rufous wings (all ages): Speckled Pigeon always shows prominent white spots on the rufous wings, easily visible in flight or at rest; Red-eyed Dove never shows any wing speckling.
2. Rufous vs greyish-brown upperparts: Speckled Pigeon has rufous back and wings, while Red-eyed Dove is more uniformly greyish-brown above.
3. Red bare skin around eye: Adult Speckled Pigeon has a large, conspicuous red patch of bare skin around the eye; Red-eyed Dove has purplish-red orbital skin but much less extensive, and the iris can be red, orange, or yellowish.
4. Black half-collar on neck: Red-eyed Dove shows a black half-collar on the sides of the neck (adults), which is never present on Speckled Pigeon.
5. Neck streaking vs collar: Speckled Pigeon has a brownish neck streaked with white; Red-eyed Dove's neck is mauve-pink with a black collar, no streaking.
6. Breast color: Red-eyed Dove has a dark mauve-pink to wine-red breast and underparts; Speckled Pigeon is blue-grey below.
7. Size and build: Speckled Pigeon is heavier and bulkier (328g vs 235g), with a more robust body and heavier bill; Red-eyed Dove is slimmer and more streamlined.
8. Leg color: Both have reddish or purplish-red legs, not reliably diagnostic.
9. Juvenile confusion: Immature Speckled Pigeons are browner and lack the red eye patch but still show wing speckling; juvenile Red-eyed Doves are duller and browner but never have wing spots or a red eye patch.
10. Habitat context: Speckled Pigeon is often in open, urban, or agricultural settings, sometimes in large flocks; Red-eyed Dove is more often in wooded or riparian areas, usually alone or in pairs.
11. Flight jizz: Both have fast, direct flight with sharp wing flicks, but Speckled Pigeon may appear heavier and broader-winged in the air.
12. Perched posture: Speckled Pigeon often perches on roofs, ledges, or exposed rocks; Red-eyed Dove prefers tree branches.
13. Voice: Only Speckled Pigeon's call is described ('doo-doo-doo'); do not rely on vocalization for separation unless familiar with both.
14. Group size: Large flocks suggest Speckled Pigeon; solitary or paired birds in wooded habitat suggest Red-eyed Dove.
15. Season/sex: Sexes are similar in both; all field marks above apply year-round.

Speckled Pigeon is noticeably heavier (328g vs 235g) and slightly longer (32–35 cm vs 30 cm) than Red-eyed Dove, giving it a bulkier, more robust appearance. Red-eyed Dove, while still large for a dove, is slimmer and less stocky. In direct comparison, Speckled Pigeon appears larger-bodied and heavier-billed, while Red-eyed Dove is more streamlined. This size difference is most apparent when both species are seen together, but can be subtle at a distance or in isolation.

Juvenile and immature birds of both species are duller and browner than adults, but the Speckled Pigeon always shows white speckling on the rufous wings, even in young birds, while Red-eyed Dove never has this pattern. Adult Speckled Pigeon is blue-grey overall with rufous back and wings covered in white spots, a grey head with conspicuous red bare skin around the eye, and a brownish, white-streaked neck. Red-eyed Dove adults have a pale bluish-grey forehead, darker crown, dark mauve-pink to wine-red neck and breast, greyish-brown upperparts, black primaries, and a black half-collar on the neck. The iris and orbital skin are reddish or purplish in both, but the red eye patch of Speckled Pigeon is more extensive and bare, while Red-eyed Dove's is more restricted and accompanied by a black neck collar. Juveniles of both are duller, but Speckled Pigeon immatures lack the red eye patch but still show wing speckling; Red-eyed Dove juveniles are browner and lack the sharpness of adult colors, but never show wing spots.

Both species have a quick, direct flight with regular beats and occasional sharp wing flicks typical of pigeons. Speckled Pigeon is often seen in large flocks, especially where grain is available, and is frequently found around human habitation and urban structures. Red-eyed Dove is less gregarious, usually seen alone or in pairs, and tends to feed in trees or on the ground in more wooded or riparian settings. Both build stick nests, but Speckled Pigeon prefers rocky outcrops or urban ledges, while Red-eyed Dove nests in trees.

Speckled Pigeon is widespread in open habitats across sub-Saharan Africa, often near human habitation, cultivated fields, and urban areas. It is rarely found in dense woodland or forest. Red-eyed Dove is also widespread in sub-Saharan Africa but is more commonly found in forests near rivers, woodland edges, and less often in open or heavily urbanized areas. While both can occur in proximity to people, Speckled Pigeon is more urban-adapted, and Red-eyed Dove is more typical of wooded or riparian habitats.

Speckled Pigeon gives a loud, repetitive 'doo-doo-doo' call. Red-eyed Dove's call is not described in the provided notes, so vocalization is not reliably diagnostic between these two with the available information.