There's an anomaly (?) between Sweeney's animal laughter in the opening stanza and his later golden grin. Could someone please explain it? Here's the opening stanza:

APENECK SWEENEY spreads his knees
Letting his arms hang down to laugh,
The zebra stripes along his jaw
Swelling to maculate giraffe.


From: P <[log in to unmask]>;
To: <[log in to unmask]>;
Subject: Re: Sweeney's golden grin?
Sent: Mon, Jul 30, 2012 1:27:30 AM

Really wonderful poetry!!

Chokh Raj <[log in to unmask]> wrote:

She and the lady in the cape           
Are suspect, thought to be in league;
Therefore the man with heavy eyes
Declines the gambit, shows fatigue,
Leaves the room and reappears
Outside the window, leaning in,         
Branches of wistaria
Circumscribe a golden grin;

'Sweeney among the Nightingales'

Incidentally, a picture of Wisteria at