Federal and Maryland state wildlife officials may consider halting the construction of an Annapolis bulkhead if it disturbs a pair of nesting bald eagles.

The pounding of wood pilings into the shore and the activity of construction crews 600 feet from the waterfront nest might scare off the eagles, said Glenn Therres, supervisor of non-game and urban wildlife at the state Department of Natural Resources.

Wildlife officials are observing the pair to determine if the bulkhead construction could inhibit the birds from reproducing. The female is expected to lay her eggs soon.

Construction is being allowed to proceed because officials determined last month that the eagles were using the waterfront nest as a hunting roost. The female would be mothering in an inland nest, Therres said.

"The birds should be OK," Therres said. "There's enough room between them and the bulkhead that it shouldn't bother them."

The two eagles mating in Edgewater have done so since 1978. They have built three nests in the area. This year wildlife officials have seen the pair shuttling between a new nest and one they left in 1984. Some speculated the two were repairing the old nest because it is near the water, Therres said.

Despite recent population rebounds, bald eagles remain an endangered species.

This year's annual midwinter bald eagle survey found 115 bald eagles and two golden eagles nesting last month at the state's two major eagle concentrations at Aberdeen Proving Grounds and the Blackwater National Wildlife Refuge.

This year, 65 bald eagles were counted on the Army base and along the Susquehanna River, where many of the birds feed. At the Blackwater Refuge near Cambridge, 51 bald eagles and one golden eagle were counted.

Therres said the numbers were average for the survey, which has been conducted for 11 years.

"The number of birds wintering in Maryland fluctuates with the cold weather, and since we had a mild December here, the eagle numbers were less than last year, when we had frozen conditions during the same period," he said.

The homeownership rate in Virginia increased by 5 percentage points to 70.8 percent during the 1980s, going against the national trend that saw the rate decline by two to four percentage points, according to a study by the Virginia Center for Housing Research at Virginia Tech. Decline in homeownership is considered by some housing advocates to be a symptom of a decrease in housing affordability.

With the exception of people under the age of 25, all age groups in Virginia saw more favorable trends than the national averages. More consistent with national trends, homeownership in single-parent households in the state declined significantly, dropping by four percentage points. For two-parent families, the rate in Virginia rose three percentage points during the past decade, compared with a national rate that did not change.

IN THE BUSINESS ... Signed contracts for future construction in the metropolitan area totaled $222.8 million in December, down 45 percent from December 1989, the F.W. Dodge Division of McGraw-Hill Inc. reported. For the year, building contracts totaled $4.5 billion, down 30 percent from $6.4 billion in 1989 ... The District of Columbia ranked eighth on a list of real estate investment prospects, Baring Institutional Realty Advisors' Consensus Forecast reported. In ranked order, the top 10 cities listed were Seattle, Dallas, Los Angeles, San Francisco, Chicago, Houston, Atlanta, the District, Orlando, Fla., and New York ... The Zeckendorf Co. of New York, the managing partner of Federal Triangle Corp., the development consortium set up last year to build the new $656 million International Cultural and Trade Center at Federal Triangle, has opened an office on Pennsylvania Avenue under the name FTPM Partnership. Other members of the partnership are Silverstein Properties Inc. of New York, the Hapsmith Corp. of Beverly Hills, Calif., and Mendelsohn Associates of Washington. Construction on the mixed-use 1.3 million-square-foot building is scheduled to begin this spring ... Coldwell Banker is launching a new national advertising campaign that acknowledges the gloomy state of the residential real estate market. G. Lane Barnett, first vice president of the Los Angeles-based company's residential group, said a major objective of the campaign, which touts the slogan "Now is the time to make your move," is to "inform consumers about the positive aspects of a down market" ... Century 21 AAIM Realty in Springfield is offering free property management services to active duty members of the armed forces ... Ellen V. Sigal of the Sigal/Zuckerman Co. will receive the 1991 Building Industry Award from the District of Columbia Building Industry Association at the group's annual award dinner March 2 ... First Virginia Bank committed $10 million to a new loan program that offers home improvement loans to borrowers with little or no equity in their homes.

CALENDAR ... The District of Columbia Building Industry Association is planning a seminar on "D.C. Land: What Is Its Worth?" on Tuesday from 9 a.m. to noon at the National Housing Center at 15th and M streets NW. For more information, call 202-966-8665 ... Builder David Johnston and construction law attorney Mike Goergen are planning a seminar on "What You Should Know About Remodeling Before You Hire a Contractor" on Wednesday from 7 to 10 p.m. at the Bethesda/Chevy Chase Chamber of Commerce. For more information about the $45 course, call 301-652-0515 ... Women in Retail Real Estate are planning a seminar on "Towson Town Center" Feb. 21 at 6 p.m. at the Ramada Inn in Bethesda. For more information, call 202-429-9889 ... The National Council of State Housing Agencies and Housing and Development Reporter are planning a conference on regulatory and business developments in "Housing Tax Credits: State Agency Administration and the Private and Nonprofit Sectors" March 20 and 21 at the Washington Hilton. For reservation information, call 202-331-9230.

PERSONNEL FILE ... Century 21 Burwell & Associates Inc. in Alexandria promoted John W. Gural to vice president of career development ... The George Hyman Construction Co. promoted Mark H. Wagner to vice president ... Fred B. Hetzel, president of Coldwell Banker -- Hetzel & Associates in Leesburg, was appointed president of the Virginia Real Estate Educational Foundation ... F. Barton Harvey III and Paul C. Brophy will take over for James W. Rouse as vice chairman and chief executive officer of the Enterprise Foundation.