Quote from: ground control on February 20, 2012, 08:19:05 AM
Nope. Breeding is brought on by increasing daylight. "Gobbling is cheap, eggs are expensive."
Breeding is in fact triggered by photoperiodism but weather is also a significant factor in when the process begins.
If Photoperiodism was the only factor, the breeding cycle would be a more precise and systematic process, which it is not.
Indications of this can be found seen in the variations in turkey behavior from season to season. Typically, if it has been a cold, wet winter, you will see winter flocks maintained longer than you will in years where winters are mild. When this occurs hunting is typically more difficult earlier in the season because a large majority of hens were unbred before the season came in. Comparatively, mild years typically offer good hunting opportunities early because hens were being bred before the season.
Ask any southern turkey outfitter if photoperiodism is the only factor affecting breeding dynamics and you'll get a mouthful about how tough it can be to gauge client bookings between march 15 and April 1 due to the issues created by weather.