Definition of "bosque"

On February 16 a reconnaissance in force was pushed to within a mile of the fort and battle offered on the open plain. The challenge was disregarded, and only noticed by the sending out of a few well-mounted men to watch our movements. The forces of the enemy were kept well concealed in the bosque (grove) above the fort and within its walls.This could be a use of bosque in the etymology 2 sense.

1862 May 4, Henry H[opkins] Sibley, “No. 8. Reports of Brig. Gen. Henry H. Sibley, C.S. Army, Commanding Army of New Mexico, Including Operations from January – to May 4, 1862.”, in A Compilation of the Official Records of the Union and Confederate Armies. Additions and Corrections to Series I—Volume IX, Washington, D.C.: Published under the direction of the Hon. Elihu Root, Secretary of War, by Brig. Gen. Fred C[rayton] Ainsworth, Chief of the Record and Pension Office, War Department, and Mr. Joseph W. Kirkley; Government Printing Office, published 1902, page 507

He drove them with great slaughter from the bosque they had then seized, repulsed a determined charge of their Lancers, made with audacity and desperation, and was master of the field. [...] The heavy bosques in our front were terminated by a drift of sand extending from the high bluff of the Contadero to the river. Behind this drift the enemy, concealed from my observation, rallied all their forces abandoning wagons on the sand hills, tents, and other supplies, including ammunition, with the desperate resolve to storm our batteries.

1862 February 23, Benjamin S[tone] Roberts, “Operations in Texas, New Mexico, and Arizona. February 1 – September 20, 1862. [No. 2. Report of Col. Benjamin S. Roberts, Fifth New Mexico Infantry.]”, in A Compilation of the Official Records of the Union and Confederate Armies. Additions and Corrections to Series I—Volume IX, Washington, D.C.: Published under the direction of the Hon. Elihu Root, Secretary of War, by Brig. Gen. Fred C[rayton] Ainsworth, Chief of the Record and Pension Office, War Department, and Mr. Joseph W. Kirkley; Government Printing Office, published 1902, pages 495 and 496