ornithologer

From Latin ornithologus +‎ -er.^[1]

ornithologer (plural ornithologers)

1. (rare) An ornithologist.
   • 1661, Robert Lovell, Πανζωορυκτολογια. Sive Panzoologicomineralogia. Or a Compleat History of Animals and Minerals, , Oxford, Oxon: Hen: Hall, for Jos: Godwin, page 134:

     So although Galen ſaith that it is harder, than that of the Partridg, Pigeon, or Henne, &c; yet where he ſpeakes of meats of good and bad juyce, he affirmeth the former, as alſo that it’s neither thin nor groſſe, and Savonarola preferreth it before the Buſtard or Thruſh, ſo Bapt Fier. Yet the Ornithologer and Volateranus deny it.

   • 1893 December, Huck Finn [pseudonym; Samuel Langhorne Clemens], “Tom Sawyer Abroad”, in Mary Mapes Dodge, editor, St. Nicholas: An Illustrated Magazine for Young Folks, volume XXI, number 2, New York, N.Y.: The Century Co.; London: T Fisher Unwin, chapter V, page 124, column 2:

     You see, he had killed hundreds and hundreds of them, and that ’s the way to find out about birds. That ’s the way people does that writes books about birds, and loves them so that they ’ll go hungry and tired and take any amount of trouble to find a new bird and kill it. Their name is ornithologers, and I could have been an ornithologer myself, because I always loved birds and creatures; […]

   • 1960 April 12, “ Richard A. Herbert”, in Journal-Every Evening, volume 28, number 87, Wilmington, Del., page thirty-five, column 6:

     Funeral services for Richard A. Herbert, 53, nationally-known ornithologer, will be held tomorrow at 2:30 p. m. in St. Anne’s Episcopal Church, Middletown, with a memorial service next Tuesday in Fifth Avenue Presbyterian Church, New York.

   • 1980 April 12, Leisure & Home (The Post-Crescent), Appleton, Wis., page 11, column 2:

     Ornithologers meet / FOND DU LAC — The Wisconsin Society for Ornithology will sponsor it s annual swan trip Sunday.