_Empidonax flaviventris._ Yellow-bellied Flycatcher.--Weight: 1 immature male, 11.9, moderately fat. This is a rare species in Kansas, the present being the ninth preserved specimen for the State. _Troglodytes aëdon parkmanii._ House Wren.--Weights: 4 adult males, mean 10.5 (9.8-10.9), 2 immature males, 9.0, 11.3; 1 adult female, 9.9, 1 immature female, 7.0; no fat (im. [**Female symbol]) to fat. _Telmatodytes palustris dissaëptus._ Long-billed Marsh Wren.--Weights: 1 adult male, 10.8; 1 adult female, 9.2; both moderately fat. The specimens are moderately bright and rufescent above, being typical of the populations of the central plains. _Cistothorus platensis stellaris._ Short-billed Marsh Wren.--Weights: 1 immature male, 8.2; 1 adult female, 8.1; immature female, 8.2; all fat. _Dumetella carolinensis._ Catbird.--Weights: 6 adult males, mean 37.5 (34.1-42.5), little fat to very fat; 14 immature males, mean 37.57 ± .94 (standard error), S. D. (standard deviation) 3.37, little fat to fat; 11 adult females, mean 39.09 ± .94, S. D. 2.97, little fat to fat; 12 immature females, mean 38.42 ± .83, S. D. 2.74, moderately fat to fat. _Toxostoma r. rufum._ Brown Thrasher.--Weight: 1 immature male, 60.2, little fat. _Hylocichla mustelina._ Wood Thrush.--Weights: 1 adult male, 54.2, moderately fat; 2 adult females, 44.6, 45.7, little fat and fat, respectively. _Hylocichla ustulata swainsonii._ Olive-backed Thrush.--Weights: 6 immature males, mean 31.0 (28.1-33.2), little fat to fat; 6 adult females, mean 29.6 (27.1-35.0), moderately fat to fat; 3 immature females, 27.1, 33.8, 35.8, little fat to fat. The absence of adult males in our sample of 15 birds is noteworthy but inexplicable with our few data. _Regulus s. satrapa._ Golden-crowned Kinglet.--Weights: 1 adult male, 6.7, moderately fat; 2 immature males, 6.5, 7.4, moderately fat and fat; 2 adult females, 7.3, 7.4, moderately fat and fat; 1 immature female, 7.2, moderately fat. _Regulus c. calendula._ Ruby-crowned Kinglet.--Weights: 3 adult males, 6.2, 7.6, 8.2, little fat to fat; 1 immature male, 6.6, fat; 4 adult females, mean 6.1 (5.6-6.7), moderately fat to fat; 3 immature females, 5.8, 6.6, 7.0, moderately fat to fat. _Vireo flavifrons._ Yellow-throated Vireo.--Weight: 1 immature male, 21.5, very fat. _Vireo s. solitarius._ Blue-headed Vireo.--Weights: 9 adult males, mean 17.7 (16.6-19.5), little fat to very fat; 17 immature males, mean 17.53 ± .46, S. D. 1.83, no fat (13.8) to very fat (21.3); 7 adult females, mean 17.6 (15.0-21.6), moderately fat to very fat; 6 immature females, mean 17.0 (14.5-18.9), moderately fat to fat. Surprisingly numerous in the sample.