he tree, or: male

photo friday's new theme is: "male". not so easy, as i only rarely take photos of people. but then i found a male photo...

trees are male in German, they are called: "der Baum" - "he tree".

the tree in the photo comes with an unique detail:
do you see the little box in the middle of it?
it's the first time i saw something like that, here's a close-up:

it's a bat-home! 

by the way, bats are female in German: "die Fledermaus" - "she bat" 

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for more contributions to the theme "male", try photo friday

...and for more about German articles, try wiki: German_articles