Martins are very sociable birds, and prefer to nest in colonies. They are not content with one or two compartment houses if larger houses are obtainable.
Do It Yourself Projects
Do It Yourself / Fun Activities for Kids at Home / Games for kids / Homemade Toys / Homemade Wooden Toys
When you defend a snow-fort, or "snow-trench" to be modern, you not only want to keep the enemy's attacking party at a distance by well-a' ed snowballs, but also to escape from being hit by their snowballs.