Rufous-booted Racket-tail vs White-booted Racket-tail

Rufous-booted Racket-tail

Ocreatus addae

Tiny3 g

All racket-tails have pronounced sexual dimorphism. Only the male has elongated outer rectrices (tail feathers) that have bare shafts with terminal flags. On both the annae and addae racket-tails, those feathers are decurved and cross; the flags are asymmetric ellipses. Male rufous-booted racket-tails are 11 to 15 cm (4.3 to 5.9 in) long including the 5.5 to 6 cm (2.2 to 2.4 in) long outer tail feathers, and weigh 2.5 to 2.7 g (0.088 to 0.095 oz). Females are 7.6 to 9 cm (3.0 to 3.5 in) long and weigh 2.6 to 3.2 g (0.092 to 0.11 oz). Voice: Both male and female rufous-booted racket-tails give "a diagnostic, descending, thin sweet trill, 'ti-tlee-ee-ee' single 'tsit' and 'trrt' notes."

ID text from Wikipedia, CC BY-SA 4.0

Photo: Allan Harris · CC0

White-booted Racket-tail

Ocreatus underwoodii

Tiny3 gForest

All racket-tails have pronounced sexual dimorphism. Only the male has elongated outer rectrices (tail feathers). These tail feathers have bare shafts with long terminal oval flags. In all five subspecies of white-booted racket-tail those feathers are straight and do not cross; the flags slightly overlap. Both sexes of all have greenish upperparts without a glittering forehead, and all have white leg puffs. Males have a greenish gray throat and a solid green belly. Male white-booted racket-tails are 11 to 15 cm (4.3 to 5.9 in) long including the 7 to 8 cm (2.8 to 3. Voice: Both male and female white-booted racket-tails give "a diagnostic, descending, thin sweet trill, 'ti-tlee-ee-ee' single 'tsit' and 'trrt' notes."

ID text from Wikipedia, CC BY-SA 4.0

Photo: Soler97 (aka Tad Boniecki) at en.wikipedia · Public domain

Photos and recordings are credited to their authors under the licence shown. Full profiles: Rufous-booted Racket-tail and White-booted Racket-tail.