Loading question...
You are in free guest mode. Timed Practice Revision List Attempt History Progress Tracking Create a free account to unlock these tools
Prev Next
Practice Reading: Fill in the Blanks (Dropdown) ID: #6320 Nightjar
Instructions
When  you  spend  your  days  nesting  on  the  ground  and  weigh  less  than  100  grams,  self-preservation  depends  on  mastering  the  art  of  disguise.  The  nightjars  soft  plumage  and  variegated  colouring  help  it    in  with  its  surrounds,  but  it  is  the  birds  own  judgement  in  choosing  the  most  sympathetic  background  that    it  a  camouflage  champion.  Each  bird  chooses  where  to  nest    on  its  specific  patterns  and  colours,  says  camouflage  researcher  Martin  Stevens,  of  the  Centre  for  Ecology  and  Conservation  at  the  University  of  Exeter  in  Cornwall.  Each  individual  bird  looks  a  little  bit  different,  he  says.  This  is  not  a  species-level  choice.  Individual  birds  consistently  sit  in  places  that  enhance  their  own  unique  markings,    within  a  habitat  and  at  a  fine  scale  with  regards  to  specific  background  sites.

Result:

With a free account: Retry and compare every attempt.
How difficult was this question?
Others found: 100% Easy · 0% Medium · 0% Hard
Saving...