1978 Walter D. Koenig Melanerpes formicivorus El Batel, Durango Hwy., Sinaloa, Mexico, elev. 5700 ft. 20 January 1200. We returned to the spot where the AW were several days ago and found nothing, though we did hear some karrits from far off across the valley. Waiting here now, in view of the pine snag (which has a few (*100) holes which could be storage holes, but no stored acorns as far as I can tell) to see if anyone will return. 1208. More karrits from down the valley. 1230. More karrits. Getting closer. Meanwhile Pam found a section of a trunk of one of the "Big-leaved" oaks here which has numerous holes looking very much like Acorn Woodpecker sap holes. Unfortunately none appear to be active, but most are rather randomly arranged 2-3 cm. apart (a few are almost aligned in a horizontal row). They give every impression of being sap holes. They are spread over an area of trunk 15 ft long beginning 25-30 ft. above the ground. 1250. Climbed into the tree where the birds had been sitting the other day, checking the epiphytes and moss for signs of stores. I didn't find any, but I did confirm that the base of the Bromeliads do hold water (and spiders, etc.), suggesting the possibility that the bird I saw landing on one did so to drink. The DBH of the pine snag here is 43.5 cm. Though the bark is perhaps not as nice as the "Yellow-Riv" type (I think it was another species) it clearly has been around long enough to potentially get holes + stores put in it (if the birds stored here at all). 1315. Still no sign of birds here. Off to walk the trail.