Can't query a single private post?

I am having trouble trying to query a single private post. I have created a custom post type called dogs, some of which are published and some of which are private.

I can query all of the dogs using the following code:

$args = array ('post_type' => 'dog', 'post_status' => array('publish', 'private')); $male_q = new WP_Query($args);

However, if I specify a name, for example:

$args = array ('post_type' => 'dog', 'name' => 'bouncer', post_status' => array('publish', 'private')); $male_q = new WP_Query($args);

then the query returns nothing.

Any thoughts?