. Birds of a Maryland farm : a local study of economic ornithology . t practically the whole piece had to he replanted. When theywere most abundant the patch was watched for several hours on June15, L899, and again on June 16, but no birds came to its aid. Birdsare known to eat these three insects at time-, but the remoteness ofthe melon field from water courses, hedgerows, and other coverattractive to the most abundant species may explain their failure to doso in this case. At the same date (June 15, L899) Diabrotica vittatawas found on canteloupes in blossom on the Hungerford farm, butalthou
. Birds of a Maryland farm : a local study of economic ornithology . t practically the whole piece had to he replanted. When theywere most abundant the patch was watched for several hours on June15, L899, and again on June 16, but no birds came to its aid. Birdsare known to eat these three insects at time-, but the remoteness ofthe melon field from water courses, hedgerows, and other coverattractive to the most abundant species may explain their failure to doso in this case. At the same date (June 15, L899) Diabrotica vittatawas found on canteloupes in blossom on the Hungerford farm, butalthough there were from L2to20 insect- on each plant, they appearedto be doing little harm. The patch was observed for an hour in thelate afternoon, and three field sparrow-, the only birds near it. were: collected, but none of these insects were found in their stomachs. Tobacco.—During the last of August and first of September. Itobacco was grown on the Bryan farm in lot 2 near the negro cabini (PI. VIII. fig. 1). and also on the other two farm-. The entire crop was. ■■nn after Howard; loaned by Division of EntomoL damaged by worm- (fig. •;> to the extent of 50 percent o\ it- value, in spite of the fact that men. women, and children turned out to pickworms every day for two week-. When the pests were most abund-ant (August 28 31) an effort was made to Learn whether birds werejoining in the war against them. Field sparrows and chipping spar-rows spent considerable time hopping among the plants, a song sparrow Circular 2d. series), Div. Entomology, Dept Agr., p. 3, L901, 28 BIRDS OF A MARYLAND FARM. and several wrens went into the field often, and two Maryland yellow-throats scurried among the leaves. Forty birds were killed in thevicinity of tobacco fields. They comprised, for the most part, theseveral species of native sparrows that breed on the farm, includingalso a few wrens, meadowlarks, flycatchers, and others. Not one ofthe4 had fed on tobacco worms, although ob
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