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Keywords from Image Description:
Gray lady and the birds Pl. . Pig Pig Pig BIRDHOUSES AND NESTING BOXES Fig hollowlimb nestingbox Fig birchbark birdhouse Fig slab birdbox Fig catproof box Fig oidshingle box Fis chestnutbark nestingbox Figs and boxes with slide fronts Fig house for Tree Swallow From Useful Birds and their Protection by Forbush