This is a video from Latvia about the natterjack toad mating season.
From NOS TV in the Netherlands:
More toads helped to cross
Thursday, September 9, 2010, 09:07
Every year in spring, the animals flock to water to mate and lay eggs.
European toads were helped most, followed by common frogs and smooth newts. But volunteers also helped increasing numbers of rare amphibians, such as the natterjack toad, great crested newt and the moor frog [see also here].
See also here.
Dutch toad migration, spring 2012: here.
Moor frogs: here.
Dutch amphibians autumn migration: here.
With its distinctive markings and a mating call that can be heard up to 2km away, the natterjack toad is one of Britain’s most striking amphibians. It is also one of the rarest, with less than 50 breeding populations in mainland Britain. Britain’s prolonged dry weather threatens to make it rarer still and Natural England is stepping in to take early action to help the natterjack make it through the drought: here.
Common frog colours: here.
Charity to build ponds for toads: here.
ScienceDaily (Apr. 12, 2012) — Midwife toads and palmate newts are run over and their habitats are fragmented by roads in the Trubia valley (Asturias). According to a Spanish study, alleviating traffic is not enough to minimise the impact on midwife toad populations: here.
A new study rates the effectiveness of highway underpasses for wildlife, and found that a notable number of creatures were saved – and that fewer vehicles were damaged: here.
Kenya: a new highway “safety” underpass for elephants reunites a herd: here.
A new study rates the effectiveness of highway underpasses for wildlife. Researchers found that the cost of building these underpasses in the highway proved to be a savings of property and life: here.