i understand you not wnating to take your bird to the vet, i was a bit nervous about taking jojo the other week, he looked to have a cold, by the next morning he was fine, i think if the cere is blocked it would be better to get it checked, i doesnt look too blocked and should be easy, maybe use a cotton bud with warm water and see it you can get it off, but i would say the vet would know better, i worry that if jojo goes to the vet and is hert or held he may become untame, as its not me who hert him i supose he wont, but please see a vet hun