It takes a pair of Swallows up to 1,200 journeys to build a nest.

Swallows belong to the family Hirundininae which also includes martins. There are 84 recognised species worldwide. They are not even distantly related to swifts. Our familiar swallow, Hirundo rustica, is generally known as the barn swallow. It breeds throughout the Northern Hemisphere including every European country except Iceland. The barn swallow is the world’s most widespread...

Greenfinch

Key information The twittering, wheezing song and flash of yellow and green as it flies, makes this finch a truly colourful character. Nesting in a garden conifer, or feasting on black sunflower seeds, it is a regular garden visitor, able to take advantage of food in rural and urban gardens. Although quite sociable, the Greenfinch may squabble among themselves or with other birds at the...