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KATE CJB TEN (1928) Observations of Larus minutus Pall. on the coast of the Kampereiland.. LIMOSA 1 (1): 14-22.

In the preceding article there are'given the results from many observations of the little Gull in Holland near Kampen en the Zuyderzee during the months of May, June and July 1928.
      From 2 birds, collected on May 26, we may see, that Coward (The Birds of the British. Isles and their Eggs) is wrong, when he makes the general statement that the little Gull has a slightly forked tail, for, when the juvenile has mouted its middle pairs of tailfeathers, there is no fork at all (see fig. 3 and 4).
      Further the conclusion of Jourdain in the Practical Handbook of British Birds (II p. 732) is not quite true, when he says, that the immature birds are at all events distinguishable from Xema sabini by the shape of the tail, especially because considering the preceding notes on the adult bird one must conclude, that the immature birds have a square tail. When the tailfeathers of the juvenile have not yet moulted (see 1 and 2), the tail is not square, but for ked. This fork is, it is true, much less deep, than on the picture of the tail of the juvenile Sabine's Gull on p. 722 of the Practical Handbook (in our specimen about 41/2 m.M.), but in order to make use of this difference as a fieldcharacter one must have much routine.

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limosa 1.1 1928
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