kick up your heels

Streets will close for annual mating migration

網址：http://www.philly.com/philly/hp/news_update/20090318__Toads_Gone_Wild___Roxborough-style.html

Rainy weather and a series of warm days are their siren song to burrow out from the loose soil where they have spent the winter in dormancy and kick up their heels.
下雨再加上一連串溫暖的日子就是它們的鬧鐘，告訴他們該從冬眠中醒來並從鬆軟的泥土中爬出來活動活動筯骨。

The Streets Department permit was the outcome of a drive spearheaded by animal activist Lisa Levinson to keep the green-and-brown amphibians - identified by naturalist Doug Wechsler as American toads - from being squashed by cars using the side roads to avoid stoplights on Ridge Avenue.
由於動物倡導者Lisa Levinson的努力，市府街道部門終於許可他們的要求要汽車繞道，來保護這綠棕色的兩棲動物--免於被汽車壓扁。

kick up your heels
to enjoy yourself a lot at a party, event etc

If someone spearheads a campaign or an attack, they lead it.

side road
a road that is smaller than a main road, but is often connected to it

讀夠久了，該活動活動囉!!