This is the third time we bring to your attention GREFA and their successes in breeding and following release of Short-toed Eagles.
Different birds’ songs with the spectrograms can be found on the Birdsongs.it website. There are two records of Short-toed Eagle’s calls among them at the moment. Here you can use a special form to search voices of other birds.
Waarneming.nl is a popular Netherlandish database of observations on plants and animals in the nature. Such form of the data keeping becomes more and more useful according to accumulation of the data with the increased pithiness of observations (Nl). All records are connected with the on-line map; some of them contain photos and comments.