1978 Walter D. Koenig 3 Melanerpes formicivorus El Batel Durongo Hwy, Sinaloa, Mexico, elev. 5700 ft. (15 January) A little later in the afternoon, after lunch, we drove partway through the village and then Pam and I retraced my steps, again first on the upper path and then returning on the lower. The primary activity which I engaged in this time was to categorize the fruiting phenology of the oaks which were along the path into one of 4 classes for each of the 2 species (one the Big-leafed, wide acorned species and two the & narrow-leaved, teeny-acorned species; no other species were evident). The results of this survey were as follows [see back of sheet]. We also noted 3 types of pines in the area: ① long-leafed, weeping pine with 5/fascicle; some individuals of this most common species were heavily laden with pollen; ② shorter-leafed (6"), not-so-weeping pine with 3/fascicle; ③ another 6" leaved pine whose needles hang nearly straight down. I'll get more information on these trees later. Also we noted the local rose-bush (blackberry-type bush) flowering and fruiting already. All in all this suggests some very different patterns than those seen in California. On the way back I walked out an overgrown path next to the pine where the ATW had been this earlier and indeed came across them: 2 38 sitting 2 feet apart in one of the "big-leafed" oaks. ① Within several seconds one moved down to a fork and began eating an acorn. This tree was, as it happened, laden with P. lumholtzii