A federal refuge with a wildlife drive through tidal marsh, and the most photographed eagle site on the east coast, which is owned by a power company.
Every place below is one an agency itself describes for eagle viewing, with that agency named and linked. Where a federal agency wrote something worth reading, its words are reproduced exactly, because a US government work is in the public domain. Where a state agency or a company is the source, the fact is in our own words with the source named.
Blackwater River tidal marsh
A 3.6 mile wildlife drive through tidal marsh with a visitor centre at the start. Unlike most of this inventory Blackwater is primarily a breeding story rather than a freeze concentration, and the refuge says so, describing one of the highest concentrations of nesting bald eagles on the Atlantic coast.
Run by US Fish and Wildlife Service
Susquehanna River
Probably the most photographed eagle site in the country, and the one in this inventory with the least government behind it. The state wildlife agency names the water below the dam as an area where eagles frequently feed. The dam and its riverside land are a private hydroelectric operation, so access, hours and parking are the company decision and can change without any agency announcing it.
“The refuge supports one of the highest concentrations of nesting bald eagles on the Atlantic coast.”US Fish and Wildlife Service, Blackwater National Wildlife Refuge. A US government work, in the public domain, quoted exactly.
Viewing sites in Maryland, with the Corps of Engineers locks and dams in the state drawn underneath. The coloured grid is where people have uploaded a verified bald eagle record to iNaturalist in December, January and February, brighter where more have been logged. It is a map of reports, not of birds: it thickens around car parks, boardwalks and towns because that is where observers stand, and it thins over roadless country whether or not eagles are there. It shows past reports rather than birds present today. Pins are public viewing sites an agency itself describes; grey dots are US Army Corps of Engineers locks and dams, drawn because open tailwater below a dam is the reason most of these sites exist.
The window for Maryland is courtship from December, with roosts in the region holding one to two hundred birds, according to Maryland Department of Natural Resources. That is a pattern across past winters rather than a forecast: how well a given year matches it depends on whether the water upstream actually freezes. A mild winter keeps the river open everywhere, the birds stay spread out, and the concentration this page is about never forms.
Time of day is the more reliable lever in any case, and it is the one thing every agency agrees on. The federal management guidance describes when eagles feed, and it is not the middle of the day.
“Avoid recreational and commercial boating and fishing near critical eagle foraging areas during peak feeding times (usually early to mid-morning and late afternoon), except where eagles have demonstrated tolerance to such activity.”US Fish and Wildlife Service, National Bald Eagle Management Guidelines, May 2007. A US government work, in the public domain, quoted exactly.
Read that as a viewing instruction rather than a boating one. The birds come off the roost hungry, fish hard in the first hours of light, and then spend the middle of the day sitting in a tree digesting, which looks exactly like an empty river to somebody who arrived at eleven. Late afternoon gives you a second, shorter window as they feed again before going back to roost.
Maryland's most famous eagle site is on private land. The single most famous winter eagle gathering on the east coast happens below Conowingo Dam, and no government agency runs it. The dam is a private hydroelectric station, the riverside land people photograph from belongs to the company, and the birds are there for the ordinary reason that turbines stun fish. So the state wildlife agency describes the feeding area, and everything else about visiting is a company decision. Blackwater, on the other hand, is a federal refuge with a wildlife drive, and it is a different kind of eagle place entirely: a nesting concentration on tidal marsh that does not freeze, busy across far more of the year and never spectacular in the way a January tailwater is.
Below is a reading of a public platform rather than a survey. It counts the research grade bald eagle observations members of the public have uploaded to iNaturalist for this state, by calendar month, across every year the platform holds. It is a count of reports. It measures how many people were out with a camera as much as it measures birds, so the shape is worth reading and the absolute numbers are not.
Reading the Maryland observation record from iNaturalist...
Checking the most recent winter upload for Maryland...
Inventory compiled 2026-09-04 from the agency pages linked above. Federal text is quoted exactly because a US government work is in the public domain; state agency, nonprofit and company material is restated in our own words with the source named and linked.