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Flamingos, those beautiful long-legged pink birds, rub the reddish pigments, released in oil from a gland near
their tail, into their feathers to bring out their vibrant colour. The result, according to researchers studying the
birds in Spam, (1)……………………..that the birds seem to become far (2) ……………………..likely to find
themselves a mate. Scientists noticed that, (3) ……………………..they were arranging their feathers, many
flamingos scraped their cheeks across the gland before rubbing their face against their breast, back and neck
(4)……………………..the aim of spreading the colour. In a journal article, the experts explained that
(5)…………………….. so helped the birds appear extra attractive to potential mates - not so
(6)………………….. because of their eye-catching colour, but because other flamingos could tell they had
(7)……………………..an effort with their appearance. One of the researchers says: The rubbing is timeconsuming. And (8) ……………………..more frequently the birds practise it, the pinker they become. ‘If the birds stop rubbing, their colour fades in a (9) …………………….. days because the pigments bleach quickly in
the sunlight.' Rubbing the pigment into the feathers takes time and effort, and. (10) ……………………..a result,
colourful feathers are a sign to the opposite sex that a flamingo is healthy and well-fed, because it
(11)…………………. afford to spend time on (12) ……………………..it looks. The behaviour is more
common in female flamingos (13) ……………………..in males, the researchers said. They added that the
brightest coloured birds also took the best breeding sites (14) ……………………..gives them a reproductive
advantage (15) …………………….. their paler rivals.
their tail, into their feathers to bring out their vibrant colour. The result, according to researchers studying the
birds in Spam, (1)……………………..that the birds seem to become far (2) ……………………..likely to find
themselves a mate. Scientists noticed that, (3) ……………………..they were arranging their feathers, many
flamingos scraped their cheeks across the gland before rubbing their face against their breast, back and neck
(4)……………………..the aim of spreading the colour. In a journal article, the experts explained that
(5)…………………….. so helped the birds appear extra attractive to potential mates - not so
(6)………………….. because of their eye-catching colour, but because other flamingos could tell they had
(7)……………………..an effort with their appearance. One of the researchers says: The rubbing is timeconsuming. And (8) ……………………..more frequently the birds practise it, the pinker they become. ‘If the birds stop rubbing, their colour fades in a (9) …………………….. days because the pigments bleach quickly in
the sunlight.' Rubbing the pigment into the feathers takes time and effort, and. (10) ……………………..a result,
colourful feathers are a sign to the opposite sex that a flamingo is healthy and well-fed, because it
(11)…………………. afford to spend time on (12) ……………………..it looks. The behaviour is more
common in female flamingos (13) ……………………..in males, the researchers said. They added that the
brightest coloured birds also took the best breeding sites (14) ……………………..gives them a reproductive
advantage (15) …………………….. their paler rivals.
