It’s hard to tell how well this works as I was using a few different things all at once.
Never got my order or a response from seller after weeks
Birds like it very much due to the seeds in it.
Terramycin is very effective.
Description
Black Oil Sunflower Seed by Leach Grain & Milling is the premium choice for sunflower seeds bird feed. These black oilers bird seed are in-shell black oil sunflower seeds that are rich in quality protein, vitamins, and essential fatty acids to support your birds' health, especially in winter.
The black oil seeds (“oilers”) have very thin shells, easy for virtually all seed-eating birds to crack open, and the kernels within have a high fat content, extremely valuable for most winter birds. It has particular high quantities of thiamine and niacin. It's main mineral ingredient is iron, which is a difficult nutrient to obtain in sufficient quantities. It also has anti-inflammatory properties.