C. rufigula 12 mi. SSW Boca del Rio May 22 Pair 2295-6 had nest in a small spiny ocotillo type tree ± 5 feet high - nest was in croch ± 4 feet up (home photo - roll 26). Nest was ± 10 x 1 " and was composed of grass, fine twigs lined with a brown plant fiber + a few feather (no wren) - contained 3 nestlings (collected in alcohol) which were a few days old. I watched ♀ gather food - flying after an insect & catching it on the wing ± 3 feet above the ground! On another occasion she descended to 3 zones the ground! An another occasion she descended to the ground & caught an insect - This is only in- stance of rufigula foraging on ground. She went to the ground only once and then worked way up into the brush to a height of ± 5 feet or so which seems to be the usual foraging level (between 5-10 feet is average foraging level I believe). Pair was very quiet and gave only a single call as I watched for several minutes. The brood patch of the ♀ was a bit drier than that of other ♀♀ I have recently ex- amined and I believe this pair is unusually advanced in the nesting cycle compared with other pairs in the area. I examined an empty nest similar to the one containing young about 30-40yds away but it may have belonged to another pair of wrens.