Austin saith, and Plinius also, that in age the eagle hath darkness and dimness in eyen, and heaviness in wings. And against this disadvantage she is taught by kind to seek a well of springing water, and then she flieth up into the air as far as she may, till she be full hot by heat of the air, and by travail of flight, and so then by heat the pores are opened and the feathers chafed, and she falleth suddenly in to the well, and there the feathers are changed, and the dimness of her eyes is wiped away and purged, and she taketh again her might and strength.
The eagle's feathers done and set among feathers of wings of other birds corrupteth and fretteth them. As strings made of wolf-gut done and put into a lute or in an harp among strings made of sheep-gut do destroy, and fret, and corrupt the strings made of sheep-gut, if it so be that they be set among them, as in a lute or in an harp, as Pliny saith.
Among all fowls, in the eagle the virtue of sight is most mighty and strong. For in the eagle the spirit of sight is most temperate and most sharp in act and deed of seeing and beholding the sun in the roundness of its circle without blemishing of eyen. And the sharpness of her sight is not rebounded again with clearness of light of the sun, nother disperpled. There is one manner eagle that is full sharp of sight, and she taketh her own birds in her claws, and maketh them to look even on the sun, and that ere their wings be full grown, and except they look stiffly and steadfastly against the sun, she beateth them, and setteth them even tofore the sun. And if any eye of any of her birds watereth in looking on the sun she slayeth him, as though he went out of kind, or else driveth him out of the nest and despiseth him, and setteth not by him.
The goshawk is a royal fowl, and is armed more with boldness than with claws, and as much as kind taketh from her in quantity of body, it rewardeth her with boldness of heart. And two kinds there be of such fowls, for some are tame and some are wild. And she that is tame taketh wild fowls and taketh them to her own lord, and she that is wild taketh tame fowls. And this hawk is of a disdainful kind. For if she fail by any hap of the prey that she reseth to, that day unneth she cometh unto her lord's hand. And she must have ordinate diet, nother too scarce, ne too full. For by too much meat she waxeth ramaious or slow, and disdaineth to come to reclaim. And if the meat be too scarce then she faileth, and is feeble and unmighty to take her prey. Also the eyen of such birds should oft be seled and closed, or hid, that she bate not too oft from his hand that beareth her, when she seeth a bird that she desireth to take; and also her legs must be fastened with gesses, that she shall not fly freely to every bird. And they be borne on the left hand, that they may somewhat take of the right hand, and be fed therewith.
And so such tame hawks be kept in mews, that they may be discharged of old feathers and hard, and be so renewed in fairness of youth. Also men give them meat of some manner of flesh, which is some-deal venomous, that they may the sooner change their feathers. And smoke grieveth such hawks and doth them harm. And therefore their mews must be far from smoky places, that their bodies be not grieved with bitterness of smoke, nor their feathers infect with blackness of smoke. They should be fed with fresh flesh and bloody, and men should use to give them to eat the hearts of fowls that they take. All the while they are alive and are strong and mighty to take their prey, they are beloved of their lords, and borne on hands, and set on perches, and stroked on the breast and on the tail, and made plain and smooth, and are nourished with great business and diligence. But when they are dead, all men hold them unprofitable and nothing worth, and be not eaten, but rather thrown out on dunghills.
The properties of bees are wonderful noble and worthy. For bees have one common kind as children, and dwell in one habitation, and are closed within one gate: one travail is common to them all, one meat is common to them all, one common working, one common use, one fruit and flight is common to them all, and one generation is common to them all.
Also maidenhood of body without wem is common to them all, and so is birth also. For they are not medlied with service of Venus, nother resolved with lechery, nother bruised with sorrow of birth of children. And yet they bring forth most swarms of children.
Bees make among them a king, and ordain among them common people. And though they be put and set under a king, yet they are free and love their king that they make, by kind love, and defend him with full great defence, and hold [it] honour and worship to perish and be spilt for their king, and do their king so great worship that none of them dare go out of their house, nor to get meat, but if the king pass out and take the principality of flight. And bees chose to their king him that is most worthy and noble in highness and fairness, and most clear in mildness, for that is chief virtue in a king. For though their king have a sting yet he useth it not in wreck. And also bees that are unobedient to the king, they deem themselves by their own doom for to die by the wound of their own sting. And of a swarm of bees is none idle. Some fight, as it were in battle, in the field against other bees, some are busy about meat, and some watch the coming of showers. And some behold concourse and meting of dues, and some make wax of flowers, and some make cells now round, now square with wonder binding and joining, and evenness. And yet nevertheless, among so diverse works none of them doth espy nor wait to take out of other's travail, neither taketh wrongfully, neither stealeth meat, but each seeketh and gathereth by his own flight and travail among herbs and flowers that are good and convenable.
Bees sit not on fruit but on flowers, not withered but fresh and new, and gather matter of the which they make both honey and wax. And when the flowers that are nigh unto them be spent, then they send spies for to espy meat in further places. And if the night falleth upon them in their journey, then they lie upright to defend their wings from rain, and from dew, that they may in the morrow tide fly the more swifter to their work with their wings dry and able to fly. And they ordain watches after the manner of castles, and rest all night until it be day, till one bee wake them all with twice buzzing or thrice, or with some manner trumping; then they fly all, if the day be fair on the morrow. And the bees that bring and bear what is needful, dread blasts of wind, and fly therefore low by the ground when they be charged, lest they be letted with some manner of blasts, and charge themselves sometimes with gravel or with small stones, that they may be the more stedfast against blasts of wind by heaviness of the stones.
The obedience of bees is wonderful about the king, for when he passeth forth, all the swarm in one cluster passeth with him. And he is beclipped about with the swarm, as it were with an host of knights. And is then unneth seen that time for the multitude that followeth and serveth him, and when the people of bees are in travail, he is within, and as it were governor, and goeth about to comfort others for to work. And only he is not bound to travail. And all about him are certain bees with stings, as it were champions, and continual wardens of the king's body. And he passeth selde out, but when all the swarm shall go out. His outgoing is known certain days tofore by voice of the host, as it were arraying itself to pass out with the king.