Zonotrichia l. nuttalli 47 24 April Bancroft, Nest H L-1 7.2 gm. All primaries + first few secondaries out. Alula out. All tracts show well. P-1 11.5 gm. Most secondaries out, all tracts nearly ready to come out. Greenhouse Area, Nest I No change at 1840, not on nest eggs warm. 25 April Bancroft, Nest H 0550 P-4 8.8 gm. All secondaries thin. P-1 10.3 gm. All secondaries thin. L-1 7.1 gm. All primaries out of skin, only 1(2nd) 4 or 5 secondaries. Alula out. All tracts show well except tail Baron Lane, Nest K No change at 0600. Greenhouse Area, Nest I No change at 0700. Bancroft, Nest H 1830 P-4 10.8 gm. Prim.(5th) 3mm. All flight feathers thin skin. Humeral + back feathers thin skin. Flank + abd. feather outlardy. P-1 12.5 gm. Feather tracts same as R-4, little more. Very few back feathers out. L-1 9.3 gm. All primaries+ secondaries out, no other feathers. Flank + abdominal almost.