Great crested grebe, (Podiceps cristatus), female defending nest platform from a pair of intruders, on lake, Lower Saxony, Germany

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Size: 4352px × 2902px
Photo credit: © Duncan Usher / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: aggressive, behavior, birds, breeding, crested, defensive, female, great, grebe, intruders, lake, male, pair, territorial, territory, threatening