A sparrow is a sparrow. Two sparrows, I guess, "two sparrows". What about a... flock, though, a gaggle or a flight?
Sparrows usually come in "hosts", it turns out. Now, if you want to collect not nouns and sparrows but email inboxes in Sparrow, here's the host of actions to take:
›› Don't go inbox-hopping in Sparrow. Have it collect the incoming messages from all your accounts in one place instead.

When Abbas Ibn Firnas was 65 years old, he stepped off a cliff. The inhabitants of Cordoba in today's Spain watched him fall — very elegantly and quite a distance, it seems.
In a safe but bumpy landing, Ibn Firnas injured his back slightly, but he had demonstrated the possibly first successful flying machine to carry a human.
That was in the year 875. Today, launch your emails off Mac OS X Mail and have them land safely as mbox files:
›› Want to save a folder in Mac OS X Mail or just some messages in a format that many another email program can import? Here's how to export from Mac OS X Mail to mbox files.

When you search your mail for text, you're interested less in the resulting emails' beginnings than in their relevant passages?
Mozilla Thunderbird in twelfth iteration now shows you where sought words appear in messages and highlights them in Firefox inline search-style:
›› Mozilla Thunderbird is a fully featured, secure and very functional email client and RSS feed reader. It lets you handle mail efficiently and with style, and Mozilla Thunderbird filters away junk mail too. (Windows, Mac, Linux)

Exploding grain flower, by another name, is also just popping corn. The Chinese 爆米花 (bào mĭ huā) is also just as exciting, of course, and ubiquitous at movie theaters, sweetened.
Exploding grain flower, by another name, could also be an enviably red poppy in a wheat field, maybe, or in an email, I'd say:
›› The very red and very beautiful trio is: poppy, poppy, and poppy. (IncrediMail)