login_head action hook is not placing code in section

Hi all,
I am using the following code to place my own stylesheet in the head section of the wp-login.php page. However, the HTML is outputted before the closing body tag and not the closing head tag.

Any ideas?

My functions.php

function login_css() {
    wp_enqueue_style( 'login_css', get_template_directory_uri() . '/css/login.css' );
}

add_action('login_head', 'login_css');

The outout:

<p id="backtoblog"><a href="https://localhost/project_tracker/" title="Are you lost?">&larr; Back to Project Tracker</a></p>

	</div>
	<link rel='stylesheet' id='login_css-css'  href='https://localhost/project_tracker/wp-content/themes/project-tracker/css/login.css' type='text/css' media='all' />
	<div class="clear"></div>
	</body>
	</html>