| Topic: Determining the sex.. | |
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      ..of birds.
 
  With birds of prey (i.e. eagles, hawks, owls, etc,) the female is the larger bird. Other birds show color variation between male & female. However, with some birds only behaviour differences exist. For instance, can you tell which of this mating pair of gulls is the female ?  
  
  
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It's not the bird that is ignoring her...  | 
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