Identity Wanted

[YosemiteJunkie]

This is three shots from yesterday. If possible can someone please identify the kind they are (the first two). I haven't got a clue. Also I am having a really hard time getting shots like this sharp. All of these were taken on a tripod with mirror lockup using the Sigma 70-300 macro at around 270mm. Any help would be greatly appreciated. Thanks. (edit: I've tried with auto focus and manual focus, though my eyes just aren't what they used to be)
http://i17.photobucket.com/albums/b67/HerbD/Wildlife/3149Framed.jpg

http://i17.photobucket.com/albums/b67/HerbD/Wildlife/3176Framed.jpg

http://i17.photobucket.com/albums/b67/HerbD/Wildlife/3189Framed.jpg