Show initial bird census washington jull 18 approximately OW native field birds exclusive of sparrows wi inhibit inhabit the united beates east of the great plains plain states according to partial returns announced today of the first official bird census in the history of the government now being made ba b the department of agriculture apparently parent ly the most mos numerous of these birds is the axin robin of which it is estimated there are east of the mississippi river they a average emge fifty pal pairs rs to the square mile after omitting land planted in crops where there are email small chances for birds to nest and timberland the census la is being taken by volunteer ob eavers the most extensive census of birds in forest land I 1 which supports a much smaller population than an equal area of farmland farm land comes from Non montana tana where the cageful counting on nearly a thousand acres shon ed an average of ono one pair to each three acres the and lands of the southeast east show the c smallest bird population barge large stretches in arizona and new mexico do not contain more than one pair to seven acres |