(1) It flew like an accipiter, and as it went over I saw its gray head and reddish underparts .

(2) The Western Scrub-Jay has blue upperparts, a grayish-brown back, and light underparts .

(3) The bird's upper body and wings are black or dark grey, and its underparts are white.

(4) Crowned pigeons (subfamily Gourinae) are grey with pink or chestnut underparts and a white wing patch.

(5) Yellow-billed Cuckoos are slender, long-tailed birds with white underparts and dark upperparts.

(6) The bright coloration is usually on the birds' underparts or is hidden when their wings are folded.

(7) Many have paler underparts than upperparts and barred underwing and tail feathers, a patterning that may make them less visible to prey.

(8) Adults have brown upperparts and buff-white underparts with a brownish breast band of short streaks.

(9) Their underparts are mostly white, except for barring and striations along the rear of the birds.

(10) As well as the characteristic white ring around the eye, they usually have green plumage with white, yellow or greyish underparts .

(11) The underparts of males and females are white, and breeding adults have buffy-orange plumage on the head and neck.

(12) Females are buff-brown with streaked backs and plain buff underparts .

(13) Steller's Jay has rich blue underparts that shade upwards from midnight to pure black, terminating with a jaunty crest.

(14) During the breeding season, adult males are easily distinguished from brownish females and juveniles by their glossy black plumages and white wing underparts .

(15) They are glossy black except for white markings on their face and underparts , with a tufted tail and slight mane.

(16) Buff-gray underparts and a brown rump contrast with streaked wings with two white wing-bars.

(17) They have black throats and breasts and light gray cheeks and underparts .

(18) The non-breeding adult (November to March) has a cap flecked with white and gray, and underparts (except the wing) barred with brown and white.

(19) Killdeers have brown upperparts, white underparts , and orange rumps.

(20) Males are mostly red with gray underparts , black wings, and two white wing-bars.