SOURCE: Second Latin Book: Jacobs' and Doering's Latin Reader (1845) at GoogleBooks. For more information and other versions of this fable, see the links list for Perry 389.
READ OUT LOUD. Choose which marked text you prefer to practice with - macrons or accent marks - and read the text out loud until you feel comfortable and confident. Then, try reading the unmarked text at the bottom. It should be easy for you after practicing with the marked texts. :-)
MACRONS. Here is the text with macrons:
Vultur aliquando aviculās invītāvit ad convīvium, quod illīs datūrus esset diē nātālī suō. Quae cum ad tempus adessent, eās carpere et occīdere, epulāsque sibi dē invītātis īnstruere coepit.
ACCENT MARKS. Here is the text with ecclesiastical accents, plus some color-coding for the words of three or more syllables (blue: penultimate stress; red: antepenultimate stress):
Vultur aliquándo avículas invitávit ad convívium, quod illis datúrus esset die natáli suo. Quae cum ad tempus adéssent, eas cárpere et occídere, epulásque sibi de invitátis instrúere coepit.
UNMARKED TEXT. Here is the unmarked text - after practicing with the marked text that you prefer, you should not have any trouble with the unmarked text:
Vultur aliquando
aviculas invitavit ad convivium,
quod illis daturus esset
die natali suo.
Quae cum ad tempus adessent,
eas carpere et occidere,
epulasque sibi
de invitatis instruere coepit.
IMAGE. Here is an illustration for the story (image source):