Observed arrival · 2026-08-31
Calving Window turns breeding dates into a herd-watching plan
A cattle planning tool that converts breeding or bull-exposure dates into calving windows, herd schedules, and downloadable records.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
Field notes
The calculator uses an editable 283-day planning default and presents a ±10-day watch window instead of an exact-day prediction. Its herd planner accepts CSV or tab-separated rows, maps common cow, herd, AI, and exposure headers, and keeps natural-service exposure as a date range. The page says pasted records remain in the browser and are not uploaded or saved in this first version. A date-only UTC engine is used to avoid daylight-saving shifts.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◎NicheUnusually specific use
One card from the complete issue