Mayhew 1950 June 11 Bridges, 10 mi. W., 1 mi. S. of Turlock, Stanislaus Co., Calif. Cliff Swallow Tonight 39 birds were banded under bridges #1 & #2 at this location: 30 of them under bridge #1, 7 under #2. In addition, 6 repeats were caught. Of this number, 31 were adults, 8 were young of the year. 50-8415 was an adult whose skull had been damaged at some time, causing a depressed area about the area of a penny on the back portion of the skull. The injury appeared to be rather an old one, so the bird was banded & released. It flew away with no apparent difficulty. The birds flushed from the nests so rapidly that very few birds could be pinned down to particular nests. The results were: 50-8401 & 50-8430 were taken from bridge #1. 50-8431 & 50-8439 were taken from bridge #2. Those pinned to nests were: 50-8431 — 10 50-8432 — 8 This makes 3 adults taken from nest 10: 50-8431 49-25627 49-25628 Pairs are now marked in nests 1-3, 2-1, 2-10, 3-2, 1, 9, & 3 from 10; single birds from 2-4, 2-5, 8, & 15. All of the repeats had been banded this year, but not all of them were banded under the same bridge that they were caught this time. The results were: