. Birds through the year . THE LONELIER HOURS 167 hour, one can easily be mistaken for the other. The grass-hopper-warblers song—for it takes the place of a moremusical ditty—possesses nearly as conspicuously as thenightjars the delicate change of pitch which averts mono-tony and adds a characteristic attraction. In the case of thenightjar the change is said to take place when the bird ceases. GRASSHOPPER-WARBLER to draw in breath and begins to expel it; but owing to itshabits of concealment the grasshopper-warbler is one of themost difficult of all birds to observe, and there is no evidenceof
. Birds through the year . THE LONELIER HOURS 167 hour, one can easily be mistaken for the other. The grass-hopper-warblers song—for it takes the place of a moremusical ditty—possesses nearly as conspicuously as thenightjars the delicate change of pitch which averts mono-tony and adds a characteristic attraction. In the case of thenightjar the change is said to take place when the bird ceases. GRASSHOPPER-WARBLER to draw in breath and begins to expel it; but owing to itshabits of concealment the grasshopper-warbler is one of themost difficult of all birds to observe, and there is no evidenceof the same cause in its case, though it is at least corncrakes note in the June mowing grass constantlyvaries in intensity, but has no change of pitch; and thealternating softness and loudness of its cry is simply dueto its turning its head in different directions while it early May, when the grass is still short, it can sometimes 168 SUMMER be plainly seen lifting its head above the green pile of themeadow, and calling in different directions, apparently seek-ing a mate. In the south of England the corncrake usuallyfalls silent in June; but in the valleys of the north and west,where it remains more abundant than it has been of lateyears in the south, it calls in the late-mown hay-fields faron into July, when the bilberries are ripening on the hills. One curious fe
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectbirdspi, bookyear1922
