Do Bald Eagles Reuse the Same Nest Year After Year?
The answer is commonly yes but the eagle territory often houses two or three alternative nests. I use the word ‘territory’ here because this concept is really more important to eagles than the specific nest. A breeding territory for eagles only houses a single active nest each year. On the other hand this territory may contain several nests that are alternatively used.
Most active eagle territories support a single nest that is used year after year. So why do some territories supports alternative nests and others don’t. Good question and no single answer is likely applicable to all circumstances. While a good solid undisturbed 600 year old conifer may support or have supported an eagles nest for 100 or even 200 or more years, most nests don’t last that long. And certainly the breeding pair of eagles don’t last that long. It is believed that eagles can live 50 or more years. Most don’t. While many conifer trees can live several hundred years most don’t and most deciduous trees live under 100 years.