The swan stands in the Christian context as a symbol for the reformer Martin Luther. The swan is therefore found in many Lutheran communities instead of a weathercock on the spire, especially in northwestern Germany and the Netherlands, where the so-called “Luther swan” made clear the confessional demarcation to the Reformed communities.
The swan I found sits on a top of a church in Emden/Germany.
Geriatri'x' Fotogallery 
This is terrific, and thank you for the history behind it too. My husband was brought up in the Lutheran Church.
Thanks for taking part in the challenge. I’ll include a link back to your post in next week’s post.
I see the swan here in the US and did not know what the symbol meant, thank you