Den 21.
January 31, 1920. Male trapped here night of January 29, and suckling female trapped at same place and same opening of mound, night of January 30. Burrow excavated to secure young, which were found in special nest chamber.
| Species stored. | Grams. |
| Aristida spp. (intimate mixture of undetermined species) | 1,115 |
| Eschscholtzia mexicana (from spring of 1919) | 48 |
| Opuntia (prickly pear, seeds only, no fruits) | 10 |
| Total | 1,173 |
Three species represented. Prickly pear hitherto found as fruits only.
Den 22.
January 1, 1921. Rather good grass growth here in summer of 1920. Burrow typical, sandy soil. Two skulls of former residents unearthed.
| Species stored. | Grams. |
| Aplopappus gracilis (some B. rothrockii) | 1,030 |
| Astragalus nuttallianus | 630 |
| Bouteloua rothrockii (some A. gracilis) | 530 |
| Sida diffusa | 30 |
| Solanum elaeagnifolium (282 fruits) | 53 |
| Loeflingia pusilla | Tr. |
| Bouteloua aristidoides | Tr. |
| Plantago ignota | Tr. |
| Lupinus sparsiflorus | Tr. |
| Old storage (mostly Bouteloua aristidoides with traces of B. rothrockii and Aristida divaricata) | 60 |
| Total | 2,333 |
Eleven species represented. First instance of quantity storage of Aplopappus gracilis. First occurrence of Loeflingia pusilla and Astragalus nuttallianus.
Den 24.
November 8, 1921. On mesa northeast of Albuquerque, N. Mex., near base of Sandia Mountains. Fair grass growth here during preceding summer.