The end of your url is a bit off, this is:
....&jsoncallback;=?
Must be:
....&jsoncallback=?
jQuery fills this method with its own with a dynamically named function (yours is function(data)converted to this named function or JSONP to work). Since the format is off, it will not replace it correctly, and the default method is jsonFlickrApi.
url ( ), , :
jsonFlickrApi({ ... })
( URL), :
myFunction({ ... })
, jQuery, - URL- ?, , , .