...The construction of theirfore-arms is such as to economise strength and the effectiveness oftheir excavating instruments... 
Robert A. Sterndale 「Natural History of the Mammalia of India and Ceylon」
...Beehlerfound a flint arrowhead, but this may have lainjust over the bone-bearing layer, or have gotin by some accident in excavating...
Frederic A. Lucas 「Animals of the Past」
...A woodpecker when excavating its nest will often allow ahuman being to approach sufficiently dose to witness it throwover its shoulder the chips of wood it has cut away with itsbill...
Douglas Dewar 「A Bird Calendar for Northern India」
...I have further observed that in excavating a cavity for a nest the downy woodpecker makes the entrance smaller than when he is excavating his winter-quarters...
John Burroughs 「Birds and Bees, Sharp Eyes and, Other Papers」
...Asexperience in excavating and interpreting results has been gainedwe have concluded that these chambers in fact represent abandonednests...
Charles T. Vorhies and Walter P. Taylor 「Life History of the Kangaroo Rat」
...He helped him secure amanual excavating kit to the side of the truck, and then headed for ahogback MacFarland had spotted from the early air photos...
Melvin Sturgis 「The Unprotected Species」
...In order to dispose of material removed in excavating, it wasnecessary to start a trench from the slope outside the mouth of thecave...
Gerard Fowke 「Archeological Investigations」
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