Purple Martin Prognosticator

Description

The Prognosticator is Recommended for Project MartinWatch participants.
This ingenious 8" calculator wheel is an indispensable management tool for all serious martin landlords. The Prognosticator accurately tells landlords:
-
the clutch initiation date of each nest
- the hatching dates of eggs in each nest
- the age of young on any given date
- the earliest possible fledgling dates for the young in any nest
Come with instructions on how to determine the date the first egg was laid in each nest.  A must for all landlords, especially Project MartinWatch participants.  Made of weatherproof plastic.
With the purchase of this item, you will receive a three month subscription to the Purple Martin Conservation Association, limited to one free subscription per household.
Purple Martin Market Place offers high-quality items for martin enthusiasts.
Buy with confidence knowing that we have directed the development of much of the merchandise and what we offer has been approved by the
Purple Martin Conservation Association
.
Profits generated support the PMCA’s conservation, education, and research programs.