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Flock Management

Follow the link below to access the

When prompted enter your OSS membership number, including the leading zeros, and password, and the Flock Book will open to the new landing page.  Click on the menu 002 top right to manage your animals or the ‘Manage‘ button bottom left to update your personal details.

Flock Book

The flock book is also available on the GRASSROOTS MOBILE APP

The Grassroots Mobile App provides you with all your own animal details, in your pocket, even when you have no internet or mobile access. You can add photos and notes on each of your sheep. When connected, you can register births, deaths, transfers and all other flock transactions while ‘on the go’.

The app is free for the first month, and then a small charge of £1.99 per month or £14.99 for the year is charged by the developer, not the Society. You can download the Grassroots Mobile App from the Appstore or Google Playstore – just search for ‘Grassroots’. Create an App User Name and password, then sync the details of all the animals you own using your normal OSS Member No and password.


We recommend checking how closely rams and ewes are related before buying sheep or breeding from them.  A quick new service, ‘Check Mate’ is now available in the online flock book, but the Society can also supply a more detailed Kinship Report on request.


Log in to the Flock Book and select ‘Check Mate’ from ‘Manage My Animals’ (top right).  Select any ram and one of your own ewes.  Click on calculate and you will be offered the four generation pedigree of the prospective offspring with common ancestors highlighted.


Use this form to request a kinship report, for single or multiple options for the pairing of sheep, which need not be owned by you.  (Requires membership log in).