Mary Ellen was down by the Charles River at Millennium Park this morning and watched a great blue heron enjoy a fresh catfish meal. It took the bird a half hour to subdue and finally consume the entire large fish, she reports. Read more.

DCR reported today that lion's-mane jellyfish have floated into the waters off Carson Beach in South Boston, Wollaston Beach in Quincy and Nahant Beach in, well, Nahant. Read more.

Melissa Sullivan spotted a deer running down Commonwealth Avenue in Allston this morning: Read more.

Mary Ellen spotted this deer bounding up the hill at Millennium Park yesterday, sign be damned. Read more.

The Esplanade Association reports she died last night, and that a Boston animal-control officer was able to remove her body "while the father swan sat at the nest with their cygnets tucked under his wings."

Paddy G reports the two were forced to raise their young amidst man-made filth along the riverbank.

Mary Ellen spotted this deer in Cutler Park along the Charles at the Needham/Dedham line this morning.

A concerned citizen files a 311 complaint asking the city to do, well, something, about this bird, which has been hanging out in an apartment-complex gazebo off Adams Street in Dorchester Lower Mills for a couple of weeks now. The report does not specify what the bird has been doing that's worth city action, aside from the fact that it exists.

Mary Ellen went out for an early morning walk at Millennium Park in West Roxbury and, spotted, among other things, a young male Northern Parula getting some sustenance (she also saw both a deer and a killdeer, but the latter was, once again, not living up to its name).

The state Division of Fisheries and Wildlife reports a bald eagle collapsed and died in her nest along the Charles River in Middlesex County after eating something that had itself eaten "second-generation anticoagulant rodenticide" (link has a photo of the dead bird). Read more.