Purple Martin colony in city park Grantsburg WI IMG_0404
Purple Martin colony in city park Grantsburg WI IMG_0387
Purple Martin colony in city park Grantsburg WI IMG_0385
Purple Martin colony in city park Grantsburg WI IMG_0384
Purple Martin colony in city park Grantsburg WI IMG_0367
Purple Martin colony in city park Grantsburg WI IMG_0347
Purple Martin colony in city park Grantsburg WI IMG_0328
Purple Martin colony in city park Grantsburg WI IMG_0303
Purple Martin colony in city park Grantsburg WI IMG_0293
Purple Martin colony in city park Grantsburg WI IMG_0274
Purple Martin colony in city park Grantsburg WI IMG_0257
Purple Martin colony in city park Grantsburg WI IMG_0256
Purple Martin colony in city park Grantsburg WI IMG_0254
Purple Martin colony in city park Grantsburg WI IMG_0243
Purple Martin colony in city park Grantsburg WI IMG_0242
Purple Martin colony in city park Grantsburg WI IMG_0241
Purple Martin colony in city park Grantsburg WI IMG_0190
Purple Martin colony in city park Grantsburg WI IMG_0187
Purple Martin colony in city park Grantsburg WI IMG_0186
Purple Martin colony in city park Grantsburg WI IMG_0182
Purple Martin colony in city park Grantsburg WI IMG_0173
Purple Martin colony in city park Grantsburg WI IMG_0167
Purple Martin colony in city park Grantsburg WI IMG_0166
Purple Martin colony in city park Grantsburg WI IMG_0165
