Native Plant Database – find when and where something’s blooming
Check out bird ranges, what time of year they’d be where, typical chirps, behavior description, and pictures here: Cornell Lad of Orinthology
The Encyclopedia of the Great Plains – Scholarly articles on the Great Plains
Wichita Tihen Notes – short blurbs acc. to newspapers about the big things happening in the city that year
Missouri Wildflowers – Sorted by color and picture. Bloom time is first part of description box.
North Dakota Wildflowers – The description told when to look for that particular flower and where you find it and its profuseness.
Tennessee Wildflowers – Look in the left hand column under seasons
An Archive of Texas Almanacs