Well it appears that eagles, Russian Steppe Eagles in particular, have expensive data roaming habits. Researchers in Russia were tracking the endangered Steppe Eagle and were tracking them through the use of SMS transmitters.
But apparently the eagles don't know anything about roaming charges (and perhaps the researchers don't as well) . Several of the eagles accumulated many text messages with their location information while in Kazakhstan, but were out of range of the mobile network.
Unfortunately for the researcher's budget, some flew to Iran, Pakistan and India where they reached a mobile network. Once there, the eagle's saved messages were downloaded and subjected to huge roaming charges. One eagle in particular broke the budget for all the other eagles.
To continue to track the birds, the group started a crowdfunding page to pay the charges. Ultimately, the phone company reduced the charges and the crowdfunding allowed the researchers to top up the bird's mobile phone budget.
If you thought your kid's mobile charges are a problem, don't let them share their phone with the birds!